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WAPO: How Discord became a breeding ground for extremists

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WAPO: How Discord became a breeding ground for extremists
« on: December 13, 2023, 05:37:07 AM »
The Discord Leaks (Part 1 of 2)

How Discord became a breeding ground for extremists

https://www.washingtonpost.com/national-security/2023/12/12/discord-app-extremism/





After white supremacists used Discord to plan the deadly Unite the Right rally in Charlottesville in 2017, company executives promised to clean up the service.

The chat platform built for gamers banned prominent far-right groups, built a trust and safety team and started marketing to a more diverse set of users.

The changes garnered attention — Discord was going mainstream, tech analysts said — but they papered over the reality that the app remained vulnerable to bad actors, and a privacy-first approach left the company in the dark about much of what took place in its chatrooms.

Into that void stepped Jack Teixeira, the young Air National Guard member from Massachusetts who allegedly exploited Discord’s lack of oversight and content moderation to share top-secret intelligence documents for more than a year.

As the covid pandemic locked them down at home, Teixeira and a group of followers spent their days in a tightknit chat server that he eventually controlled. What began as a place to hang out while playing first-person-shooter games, laugh at gory videos and trade vile memes became something else entirely — the scene of one of the most damaging leaks of classified national security secrets in years.

Discord executives say no one ever reported to them that Teixeira was sharing classified material on the platform. It is not possible, added John Redgrave, Discord’s vice president of trust and safety, for the company to identify what is or isn’t classified. When Discord became aware of Teixeira’s alleged leaking, staff moved “as fast as humanly possible” to assess the scope of what had happened and identify the leaker.

But according to interviews with more than a dozen current and former employees, moderators and researchers, the company’s rules and culture allowed a racist and antisemitic community to flourish, giving Teixeira an audience eager for his revelations and unlikely to report his alleged lawbreaking. Discord allows anonymous users to control large swaths of its online meeting rooms with little oversight. To detect bad behavior, the company relies on largely unpaid volunteer moderators and server administrators like Teixeira to police activity, and on users themselves to report behavior that violates community guidelines.

“While the Trust & Safety team makes life difficult for bad actors,” the company’s founders wrote in 2020, “our users play their part by reporting violations — showing that they care about this community as much as we do.” Discord also allows users to immediately and permanently delete material that hasn’t previously come to their attention, often rendering it impossible to reconstruct even at the request of law enforcement. The Washington Post and “Frontline” found that Teixeira took advantage of this feature to destroy a full record of his alleged leaking.

People familiar with the FBI’s investigation credited Discord with responding more quickly to law enforcement requests than many other technology firms. But Discord says it had no real-time visibility into Teixeira’s activity — offering him time and space to allegedly share classified government documents, despite a slew of warning signs missed by the company.

Discord’s troubles are not unique in Silicon Valley. Mainstream social media platforms like Facebook and YouTube have weathered years of criticism over algorithms that push disinformation and ideological bias, opening doors to radicalization. TikTok has been blamed for promoting dangerous teen behavior and a dramatic rise in antisemitism on the platform. And X, formerly Twitter, had its trust and safety team gutted after Elon Musk purchased the platform and allowed two prominent organizers of the Charlottesville rally, Richard Spencer and Jason Kessler, to buy verification.

Other messaging apps that have grown in popularity, such as Telegram and Signal, allow for end-to-end encryption, a feature popular with privacy-conscious users but which the FBI has opposed, claiming it allows for “lawless spaces that criminals, terrorists, and other bad actors can exploit.”

Discord currently doesn’t feature end-to-end encryption, so it is theoretically able to scan all its servers for problematic content. With certain exceptions, it elects not to, say Discord executives and people familiar with the platform.

In 2021, an account tied to Teixeira was banned from Discord for hate speech violations, the company said. But he continued to use the platform unimpeded and undetected from a different account until April, when he was arrested. During that time he allegedly leaked intelligence, and posted racist, violence-filled screeds in violation of Discord’s community guidelines.

In October, the company announced that it would implement a new warning system and move away from permanent bans in favor of temporary ones for many violations. In the past, many users easily circumvented Discord’s suspension policies — including Teixeira.




Discord started as a hangout for gamers. (Jenny Kane/AP)


By gamers, for gamers

Jason Citron and Stan Vishnevskiy, two software developers, co-founded Discord in 2015 as a communication tool for gamers. Players soon flocked to the free platform to communicate as they played first-person shooters and other games. Discord also let them stay in touch after they put down their virtual weapons, in servers with chatrooms called “channels” that were always running. Communities started taking shape, soon augmented with video calling and screen sharing. But inside Discord’s servers, there were growing problems.

Discord invested little in monitoring, though it launched a year into GamerGate, the misogynist harassment campaign that targeted women in the video game industry with threats of violence and doxing. Until the summer of 2017, its trust and safety team employed a single person. That wasn’t unusual at the time, said Redgrave.

“It’s not unique for a company like Discord or frankly like any tech company that has gotten to the size of Discord to not have a trust and safety team, at one point in time,” he said.

Then came Charlottesville.

Hundreds of neo-Nazis and white supremacists gathered in Charlottesville for a torch-lit rally on the night of Aug. 11, 2017. At a counterprotest the following morning, James Alex Fields Jr. rammed a car into a crowd, killing one person and injuring 35. Evidence gathered at the subsequent civil trial pointed to Discord as a key online organizing tool, where users traded antisemitic and racist memes and jokes while planning carpools, a dress code, lodging and makeshift weapons.

“It is clear that many members of the ‘alt-right’ feel free to speak online in part because of their ability to hide behind an anonymous username,” wrote Judge Joseph C. Spero of the U.S. District Court for the Northern District of California in allowing prosecutors to subpoena Discord chat history.

“It was for a while known as the Nazi platform,” said PS Berge, a media scholar and PhD candidate at the University of Central Florida who has studied far-right communities on Discord. “It was preferred by white supremacists because it allowed them to cultivate exclusive, protected, insulated private communities where they could gather and share resources and misinformation.”

After the rally, the company scrambled to hire for the nascent trust and safety team — Discord says trust and safety staff now total 15 percent of the company’s employees — and banned servers associated with neo-Nazis like Andrew Anglin and groups including Atomwaffen and the Nordic Resistance Movement.

“Charlottesville caused Discord to really invest in trust and safety,” said Zac Parker, who worked on Discord’s community moderation team until November 2022. “This matches a broader pattern in the industry where companies will mostly overlook trust and safety work until a major incident happens on their platform, which causes them to start investing in trust and safety as part of the damage control process.”

After acquiring Redgrave’s machine-learning company Sentropy in 2021, he said the company got better at automated scanning for disturbing and unauthorized content including child sexual abuse material. Discord’s quarterly transparency audits show a higher percentage of violations are now being detected before they get reported.

“We have moved from a state where we remove things that violate our terms of service proactively about 40 percent of the time to now 85 percent of the time,” said Redgrave.

But the company also encourages users to expect a greater degree of privacy than on competing platforms. Discord prominently reassures users on its website that it doesn’t “monitor every server or every conversation.” In the past, employees have promised the gaming community that the company wasn’t snooping on their chats.

“Discord’s approach to moderation intersects with its understanding of free speech or other ethical issues, or its treatment of user data,” said Parker. “Discord has a strong reputation of privacy.”

More than 80 percent of conversations on Discord take place in what the company calls “smaller spaces” — such as invite-only communities and direct messages between users. There, Discord’s moderation presence is minimal or, outside of narrow cases, effectively nonexistent.

Most voice and video chats, which are some of Discord’s most popular features and where Teixeira and his friends spent countless hours, are not recorded or monitored.

“We have taken the stance that a lot of these spaces are like text messaging your friends and your loved ones,” said Redgrave. “It’s inappropriate for us to violate people’s privacy and we don’t have the level of precision to do so when it comes to detection.”


Mass killings and extremist organizing

Occasionally, the company is forced to crack down at scale. One former member of Discord’s trust and safety team recalled working through the night of March 14, 2019, after far-right gunman Brenton Tarrant live-streamed attacks on Muslim worshipers in Christchurch, New Zealand, killing 51 people. The footage was originally broadcast on Facebook but it quickly spread to other platforms, where it became a calling card in extremist communities, inspiring future attacks. In the 10 days following the shootings, Discord said it banned 1,397 accounts and removed 159 servers due to content related to the shootings.

“Discord did what it could but I think it just, as a platform, kind of lends itself, unfortunately, to not great folks,” said the former staffer, who worked at Discord for more than two years and spoke to The Post under the condition of anonymity to discuss their former employer. “These people are not just the worst offenders, these are also the people that sustain Discord.”

Discord came up repeatedly in connection to grim, high-profile events: the Jan. 6, 2021, attack on the Capitol; organized “swatting” campaigns that led armed police to the homes of innocent victims; the 2022 racist mass killing targeting Black shoppers in Buffalo. Each time, the platform was unprepared to respond to what its users were doing.

“When you first log into the platform, it is only going to show you its most curated, most pristine communities,” said Berge. “But underneath, what goes on in the smaller, private communities that the public doesn’t have access to, that you can only get into by invitation and that might be even more protected with recruitment servers or skin tone verification, that’s where hate proliferates across the platform. And the problem is, it’s very hard to see.”

Company representatives who testified before the House committee that investigated the Jan. 6 insurrection saw the hazard in “relying too much on user moderation when the user base may not have an interest in reporting,” according to a draft report prepared by the committee. The company told the committee that this “informed some of the proactive monitoring it underwent during the weeks before January 6th.”

Discord said it banned a server, DonaldsArmy.US, after a Dec. 19 tweet made by President Donald Trump was followed by organizing activity on it, including discussions about how to “bring firearms into the city in response to the President’s call.” But House investigators also noted that the company had missed earlier connections between the platform and a major pro-Trump online forum called TheDonald.win, which was implicated in planning for the riot.

After the riot, the company formed a dedicated counterextremism team. But people with extremist beliefs continued to frequent Discord, trafficking in white supremacist memes and predilections of violence, or worse.

Payton Gendron, who shot and killed 10 Black people at a Buffalo supermarket on May 14, 2022, used a private Discord server to record his daily activities and planning for the attack, including weapons purchases and a visit to the store to gauge its defenses.

Parker said it was unlikely that Discord’s moderation tools would flag someone using Discord in the way Gendron did.

“You would need to be able to literally identify what’s the difference between someone putting a schedule of events in any server versus a schedule of when they intend to hurt people. You would need to have a model that could read everything on the platform as well as a person could, which just doesn’t exist,” said Parker.

Nearly two months after the Buffalo shooting, a man who killed seven people in a mass killing in Highland Park, Ill., was found to have administered his own Discord server called “SS.”

“The investigations we do at SITE — particularly those of far-right extremists — almost always lead to Discord in some way,” said Rita Katz, director of the SITE Intelligence Group, a private firm that tracks extremist activity. “Tech companies have a responsibility to address and counter these types of repeated, systematic problems on their platforms.”

As Discord’s user base skyrocketed during the pandemic, the company launched programs to help moderators better enforce the platform’s rules. It was a limited group, but the company created a moderator curriculum and exam, and invited top moderators to an exclusive server called the Discord Moderator Discord where they could raise issues to trust and safety staff and shape policy. A 2022 study conducted by Stanford credited the server with curbing anti-LGBTQ+ hate speech on the platform during Pride Month.

But in November 2022, the company canned the server, began shutting down related moderator training programs and laid off three members of the trust and safety team that ran them, according to Parker, one of the laid-off employees.

A moderator who was trained and paid by Discord to write articles for the company about safety said the decision was a shock. “This is something we spent years investing our time into, for the good of the platform,” said Panley, who spoke on the condition that she be identified by her online handle. “After that happened, a lot of people became very disillusioned toward Discord.”

Redgrave said the company educates moderators in multiple ways and pointed to materials on the site. “We ultimately decided that Discord Moderator Discord was not going to be the most effective way to deploy our resources,” he added.

By the time Discord was shuttering its attempt to engage with the moderators who police its own rules and content, Jack Teixeira was already sharing classified government secrets with friends.

End of Part 1 of 2
« Last Edit: December 13, 2023, 05:43:53 AM by Administrator »

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Re: WAPO: How Discord became a breeding ground for extremists
« Reply #1 on: December 13, 2023, 05:38:50 AM »
Part 2 of 2

How Discord became a breeding ground for extremists

https://www.washingtonpost.com/national-security/2023/12/12/discord-app-extremism/


Beginning in 2020, Teixeira and his friends had littered several private servers, including Thug Shaker Central, with racist and antisemitic posts, gore and imagery from terrorist attacks — all in apparent violation of Discord’s community guidelines. The server name itself was a reference to a racist meme taken from gay porn. Though his intentions weren’t always clear, in chats Teixeira discussed committing acts of violence, fantasizing about blowing up his school and rigging a vehicle from which to shoot people.

Members of Thug Shaker Central also shared memes riffing on the live stream footage of the Christchurch mass killing, which Tarrant had littered with far-right online references aimed at gaming communities.

A user on the server who went by the handle “Memenicer” said he would discuss “accelerationist rhetoric” and “racial ideology” with Teixeira, pushing to see how far the conversation would go. On the wall of Teixeira’s room hung the flag of Rhodesia, a racist minority-ruled former state in southern Africa that has become a totem among white nationalists.

After Teixeira’s arrest, FBI agents visited Memenicer, who spoke on the condition that he be identified by his online handle, carrying transcripts of chats the two had exchanged, he said.

“One was about a school shooting and then one was … about a mass shooting,” he said. More often the server was a stream of slurs: “the n-word over and over again.”

In Thug Shaker Central, Teixeira cultivated a cadre of younger users, who he wanted to be “prepared” for action against a government he worked for but claimed to distrust. Over time, the community became “more extreme,” according to Pucki, a user who created the initial server used by the group during pandemic lockdowns in 2020 and spoke on the condition that he be identified by his online handle.

Once he became administrator of the server, Teixeira expelled those he didn’t like, narrowing the pool of who could report him. Many of those who remained had spent time on 4chan’s firearms board and its notorious racism and sexism-filled /pol/ forum, Pucki said, bringing the toxic language and memes from those communities.

Teixeira’s political and social views increasingly infected the server, said members of Thug Shaker Central. “It became less about playing games and chatting and having fun, and it became about screaming racial slurs,” said Pucki.

There was at least one self described neo-Nazi on Thug Shaker Central: a teenager who went by the handle “Crow” and who said she dated Teixeira until early 2022. Crow said that at the time she was involved with more hardcore accelerationist white supremacist groups that sought to inspire racial revolution, movements she says she has since left behind and disavows.

Crow spent time on Telegram, but she also pushed her views on Discord, including in Thug Shaker Central, where several members recalled her sharing links to other communities and posting racist material, including swastikas.

“I was trying to radicalize people at the time,” said Crow. “I was trying to get them to join … get them more violent.”

Crow claimed that a young man she attempted to radicalize later live-streamed the beating of a Black man in a Discord private message as she and another person watched. The Post was unable to confirm the existence of this video.

“The man was sitting against a wall and he was kicking him,” Crow said. She had little fear the video broadcast in a group chat would be picked up by the company. “They, as far as I know, can’t really look into those.”

Teixeira posted videos taken behind his mother and stepfather’s house, firing guns into the woods. Filmed from Teixeira’s perspective, the clips mimicked the aesthetic of first-person-shooter video games — the look of Tarrant’s live stream in Christchurch.

“That’s what I think of instantly,” said Mariana Olaizola, a policy adviser on technology and law at the NYU Stern Center for Business and Human Rights who wrote a May report on extremism in gaming communities. “I’m not sure about other people, but the resemblance is very obvious, I would say.”

Another video Teixeira posted on the server showed him standing in camouflage fatigues at a gun range near his home. “Jews scam, n----rs rape, and I mag dump,” he says to the camera before firing the full magazine downrange.

Discord’s Redgrave confirmed that the video violated the company’s community guidelines. But like everything else that happened on Thug Shaker Central, no one at Discord saw it.

The intelligence horde linked to Teixeira turned out to be larger than it first appeared, extending to hundreds of documents posted online, either as text or images, for more than a year.

Redgrave said there was little the company could do about the platform being used to share government secrets.

“Without knowing what is and is not classified and without having some way to essentially detect that proactively, we can’t say definitively where classified documents go,” said Redgrave. “That’s true of every single tech company, not just us.”

Although staff spotted potentially classified material circulating online, including on 4chan, as early as April 4, they didn’t connect it to Discord until journalists started contacting the company on April 7, said Redgrave.

When Teixeira frantically shuttered Thug Shaker Central on April 7, the company was left without an archive of content to review or provide to the FBI, which made its first request to Discord the same day.

Despite its history of apparent policy violations, Thug Shaker Central was never flagged to the trust and safety team. “No users at all reported anything about this to us,” said Redgrave. “He had deleted TSC before Discord became aware of it,” he added. “These deletions are why, at the time, we were unable to review it completely for all content that would have violated our policies.”

A review of search warrant applications issued to Discord since 2022 found that law enforcement agencies were generally aware of the company’s limited retention policies, which they noted typically rendered deleted data tied to suspects unrecoverable.

“I don’t think any platform is ever going to catch everything,” said Katherine Keneally, head of threat analysis and prevention at the Institute for Strategic Dialogue, and a former researcher with the New York City Police Department. But a “data retention change,” she said, “would probably be a good start in ensuring at least that there is some accountability.”

In the days after Thug Shaker Central was brought to Discord’s attention, the company sifted through traces of the server captured only in fragments of metadata, according to company representatives. It leaned heavily on direct messages, screenshots and press reports to piece together what had happened. By the time Teixeira was arrested on April 13, The Post had already obtained hundreds of images of classified documents shared online but about which Discord said it had no original record.

According to court records, FBI investigators found that Teixeira had been sharing classified information on at least three, separate Discord servers.

One of those spaces was a server associated with the popular YouTuber Abinavski, who gained a following for his humorous edits of the military game “War Thunder.” Moderators on the server, Abinavski’s Exclusion Zone, watched in disbelief, then bewilderment, as Teixeira began uploading typed intelligence updates around the start of Russia’s invasion of Ukraine. He organized them in a thread, essentially another channel within the server, that was dedicated to the war. Teixeira posted intelligence for more than a year, first as text then full photographs, at times catering intelligence to particular members in other countries.

An April 5, 2022, update was representative. “We’ll start off with casualty assessment,” it begins, before listing Russian and Ukrainian personnel losses, followed by what are presumably classified assessments of equipment losses on both sides. The next paragraph contains a detailed summary of Ukrainian weapons stores along with a brief on Russian operational constraints.

“Being able to see it immediately was just very fascinating and a little bit exhilarating,” said Jeremiah, one of the server’s young moderators, who agreed to an interview on the condition that he would be identified only by his first name. “Which again, in hindsight is completely the wrong move, it should have been immediately reporting him, but it was very interesting.”

An Air Force inspector general’s report, released on Monday, found that Teixeira’s superiors at Otis Air National Guard Base inside Joint Base Cape Cod failed to take sufficient action when he was caught accessing classified information inappropriately on as many as four occasions. If members of his unit had acted sooner, the report found, Teixeira’s “unauthorized and unlawful disclosures” could have been reduced by “several months.”

The thread used by Teixeira disappeared sometime around a March 19 post he made indicating he would cease updates, according to Jeremiah and three other users on the server. Redgrave said that like Thug Shaker Central, Discord had no record of “reports or flags related to classified material” on Abinavski’s Exclusion Zone before April 7. It wasn’t until April 24 — 11 days after Teixeira’s arrest and more than two weeks after the FBI’s first contact with Discord — that an alert from the company popped up in Jeremiah’s and other moderators’ direct messages.

“Your account is receiving this notice due to involvement with managing or moderating a server that violates our Community Guidelines,” read the note from Discord’s Trust and Safety team. The message instructed moderators to “remove said content and report it as necessary.” It was the first and last communication he received from Discord.

“It was a completely automated message,” said Jeremiah, who spoke to The Post in Flagstaff, Ariz., where he lives. “None of us have had any contact with any Discord staff whatsoever, that’s just not how they handle things like this.”

Like other moderators on Abinavski’s Exclusion Zone, Jeremiah had largely fallen into his role of periodically booting or policing troublemakers. He had no training. He summarized Discord’s moderation policy as “see no evil, hear no evil.”

“They pretty much pass off all blame onto us, which is how their moderation works, since it’s all self moderated,” said Jeremiah. “It gives them the ability to go, ‘Oh, well, we didn’t know about it. We don’t constantly monitor everyone, it’s on them for not reporting it.’”

In October, Discord announced several new features for young users, including automatic blurring of potentially sensitive media and safety alerts when minors are contacted by users for the first time. It also said it was relaxing punishments for users who run afoul of the platform’s Community Guidelines.

Under the old system, accounts found to have repeatedly violated Discord’s guidelines would face permanent suspension. That step will now be reserved for accounts that engage in the “most severe harms,” like sharing child sexual exploitation or encouraging violence. Users who violate less severe policies will be met with warnings detailing their violations, and in some cases, temporary bans lasting up to one year.

“We’ve found that if someone knows exactly how they broke the rules, it gives them a chance to reflect and change their behavior, helping keep Discord safer,” the platform said in a blog post, describing the new system.

“The whole warning system rings to me like Discord trying to have its cake and eat it too,” said Berge, the media scholar. “It can give the pretense of stepping up and ‘taking action’ by handing out warnings, while the actual labor of moderation, muting, banning and resolving issues will ultimately fall on the shoulders of admins and moderators.”

“It’s a big messaging shift from a year or two ago when Discord was avidly trying to distance itself from its toxic history,” she said.

Researchers like Berge and Olaizola continue to find extremist servers within Discord. In November, The Post reviewed more than a half dozen servers on Discord, discoverable through links on the open web, which featured swastikas and other Nazi iconography, videos of beheadings and gore, and bots that counted the number of times users used the n-word. The company has also struggled to stem child exploitation on the platform.

Users in one server recently reviewed by The Post asked for feedback on their edits of the Christchurch shooting video, set to songs including Queen’s “Don’t Stop Me Now.”

Another clip on the server, which had been online for more than six months, included a portion of Gendron’s live stream broadcast from the Buffalo supermarket where he shot and killed 10 Black people.

In a statement issued after Teixeira’s arrest, Discord said that the trust and safety staff had banned users, deleted content that contravened the platform’s terms and warned others who “continue to share the materials in question.”

“This was a problematic pocket on our service,” said Redgrave, adding that seven members of Thug Shaker Central had been banned. “Problematic pockets are something that we’re constantly evolving our approach to figure out how to identify. We don’t want these people on Discord.”

More than a dozen Thug Shaker Central users now reside on a Discord server where the community once led by Teixeira has been resuscitated — absent their jailed friend. The Post reviewed chats in the server. Members discuss his case and complain about press coverage, expressing the desire to “expose” Post reporters.

“Don’t read their zog tales,” one user wrote on June 4, using an abbreviation for “Zionist Occupied Government,” a baseless antisemitic conspiracy theory.

Another user wrote on Sept. 10 that their lawyer had suggested they stop using racist slurs.

“(I won’t stop),” the user added.
« Last Edit: December 13, 2023, 05:45:13 AM by Administrator »

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Re: WAPO: How Discord became a breeding ground for extremists
« Reply #2 on: March 01, 2024, 05:07:54 AM »
Jack Teixeira will plead guilty in massive leak of documents on Discord

https://www.washingtonpost.com/national-security/2024/02/29/discord-leak-jack-teixeira-guilty/





Jack Teixeira, a young military computer technician accused of leaking highly classified government intelligence, will enter a guilty plea before a federal district court judge in Boston on Monday. Federal prosecutors on Thursday filed a motion notifying the judge that Teixeira intended to change his earlier plea of not guilty.

Teixeira was accused of using his top-secret security clearance to access classified government computer networks on an Air Force base in Cape Cod, where he worked with a unit providing intelligence support to the military. A Washington Post investigation revealed that, while Teixeira was serving in the Massachusetts Air National Guard, he shared hundreds of classified documents as well as his own summaries of classified reports on Discord, an online chat platform popular with video gamers.

Teixeira’s leaks revealed information about the Russia-Ukraine war, China’s development of hypersonic spy drones, North Korea’s nuclear weapons development, conflicts in the Middle East and the Ukrainian sabotage of the Nord Stream natural gas pipeline.

Teixeira, 22, was arrested last April and charged with six counts of illegal retention and transmission of national defense information. If he had been found guilty at trial, he would have faced a prison sentence of 30 years to life, according to federal sentencing guidelines. A guilty plea suggests Teixeira will serve substantially less time.

The leaks were seen as one of the most serious breaches of U.S. national security in recent years. Teixeira had been sharing information in a small Discord server that he formed with friends during the covid-19 pandemic. He also posted classified information about the war in Ukraine as early as February 2022 in another, larger server with hundreds of active users. Government authorities didn’t notice any of the leaks until the spring of 2023.

Many of the documents Teixeira was accused of disclosing focused on Russia’s invasion of Ukraine. Daily intelligence updates — as well as briefing documents prepared for senior leaders — showed that U.S. officials knew Ukraine was running desperately low on munitions and taking heavy casualties. Ukraine’s daring sabotage missions inside Russia weren’t shaking the public’s resolve, nor had they deterred President Vladimir Putin from continuing to feed his troops into a veritable meat grinder. Against that backdrop, the prospects for a much anticipated 2023 counteroffensive to turn the tide of the war were slim, but U.S. officials remained publicly upbeat.

Those dire forecasts resonate today as Ukraine faces critical shortfalls in munitions and Congress is deadlocked on a spending measure to provide aid to the beleaguered country. Some U.S. officials are concerned that without additional support, Ukrainian defenses could be at risk of collapse.

The Discord leaks were remarkable for their breadth. They were also of-the-moment; reports spanning a period from around February to March of 2023 offered deep insights into events that were developing by the day.

The leaks exposed classified information on an apparent plan by Egypt to supply Russia with weapons in contravention of the wishes of the United States. They revealed the Pentagon’s assessment of Taiwan’s vulnerability to Chinese attack. Other classified documents revealed never-before-seen images of the Chinese spy balloon that entered North American airspace in late January 2023 and assessed that Beijing was readying a base to deploy high-altitude spy drones that could travel at least three times the speed of sound.

Teixeira’s case also revealed profound weaknesses in how the military protects highly classified information. Some of the intelligence Teixeira shared was so sensitive that U.S. and other government officials said it would risk human lives if it were widely exposed.

Teixeira was able to obtain a security clearance despite a history of making violent threats. He had been suspended from his high school for threatening to bring weapons to school. A police investigation showed that he used racist language and told fellow students that he wanted to kill Black people.

The Post investigation found that the online community where Teixeira routinely shared classified information was a hotbed of racist and antisemitic rhetoric, whose members, most of them teenage boys united by an interest in military gear and warfare, peddled gory videos and traded conspiracy theories about government agents.

Teixeira told friends he had seen proof, in government intelligence, that federal authorities knew in advance about mass shootings and let them happen to create a pretext for tougher gun control laws. Some of them believed his baseless claims, they said, because Teixeira obviously had access to a wide range of government secrets. At work, prosecutors alleged, Teixeira hunted for information to prove his misguided conspiracy theories, searching intelligence databases for keywords about mass shootings in Las Vegas, Buffalo, and Uvalde, Tex.

Teixeira shared classified information with his friends to impress them, they said, and to demonstrate that he had access to information and knowledge about important world events that others did not. High school friends described Teixeira as fascinated with trivia about military hardware and weaponry, and said his interests often turned pedantic.

Many of the members of the Discord group looked up to Teixeira as their leader. His military credentials and job with an intelligence unit gave him an aura of credibility and authority, friends said. During the isolation of the pandemic, they spent much of their days together online.