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Timothy Edgar

@timothy-edgar.bsky.social
393 followers 147 following 102 posts

I teach privacy and cybersecurity at Brown U and Harvard Law School; author of Beyond Snowden; former White House national security staff; former ACLU

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Reposted by Timothy Edgar
Ned Resnikoff @resnikoff.bsky.social · 23/06/2026
On reading Gordon Wood ahead of the 250th, and on cosmopolitanism as an essential part of America's founding creed: publiccomment.blog/p/cosmopolit...
publiccomment.blog
Cosmopolitan America
Some thoughts on the revolution at 250
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Lea Kissner @leak.bsky.social · 25/05/2026
Do you know what job is incredibly in-demand because of AI? Security. We're always trying to outrun the Internet, but the Internet got faster. The threat landscape has shifted radically at the same time as the attacks have accelerated. I chatted with @kateconger.com: www.nytimes.com/2026/05/24/t...
nytimes.com
One Job That Is Growing in the A.I. Era? Cybersecurity Experts.
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Reposted by Timothy Edgar
Verified Voting @verifiedvoting.org · 31/07/2025
@annalysyanskaya.bsky.social's bio: verifiedvoting.org/team/#lysyan... @timothy-edgar.bsky.social's bio: verifiedvoting.org/team/#edgar
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Reposted by Timothy Edgar
Verified Voting @verifiedvoting.org · 31/07/2025
Verified Voting is excited to welcome @annalysyanskaya.bsky.social & @timothy-edgar.bsky.social to our board of advisors! Anna & Timothy bring invaluable expertise to our mission of strengthening democracy & promoting the responsible use of technology in elections. Check out their bios below!
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Timothy Edgar @timothy-edgar.bsky.social · 29/04/2026
Really helpful rundown of the many issues in Chatrie.
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Reposted by Timothy Edgar
Joseph Lorenzo Hall, PhD @josephhall.org · 23/03/2026
New preprint by Anna Lysyanskaya and Eileen Nolan on SMA2RT. Highly relevant for the anonymous token space. It bridges ATPMs and anonymous credentials, solving the communication complexity bottleneck for privacy-preserving rate-limited web services.
eprint.iacr.org
${{\mathsf{SMA}^2\mathsf{RT}}}$ : Secret-Metadata Attribute-based Anonymous Rate-limited Tokens
In high-volume online services—such as privacy-preserving CAPTCHA bypass or metered paywalls—service providers must filter malicious traffic without compromising user privacy. Anonymous tokens with...
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Timothy Edgar @timothy-edgar.bsky.social · 27/02/2026
Why the #TikTok deal doesn't do much to make Americans safer from foreign espionage; instead, it made the problem worse. My interview with Harvard Law Today. @hls.harvard.edu hls.harvard.edu/today/is-the...
hls.harvard.edu
Is the new US TikTok safer? - Harvard Law School
Harvard Law Lecturer Timothy Edgar unpacks the new $14B TikTok Chinese divestment deal.
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Reposted by Timothy Edgar
Benjamin Wittes @benjaminwittes.lawfaremedia.org · 06/02/2026
The Washington Post—for which I wrote editorials for nearly a decade—has closed its Kyiv bureau. @lawfaremedia.org has not—and we will not. We now employ more people in Kyiv than the Washington Post. Let me tell you about what we have done in Ukraine over the past year and why we are not leaving
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Timothy Edgar @timothy-edgar.bsky.social · 29/01/2026
Not to mention wildly inconsistent with a mountain of evidence concerning the original understanding of the Fourth Amendment, which was all about suing officials for unreasonable searches and seizures.
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Reposted by Timothy Edgar
Edward Fitzpatrick @fitzprov.bsky.social · 24/01/2026
US Representative @amo.house.gov said, “Trump’s army of authoritarian masked men have once again shot and killed an American citizen exercising their First Amendment rights. This is not law enforcement; it is brutalization of our communities meant to make us afraid."
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Reposted by Timothy Edgar
spd422.bsky.social @spd422.bsky.social · 16/01/2026
media.tenor.com
a man with a beard and a hood says you don 't need to see his identification
ALT: a man with a beard and a hood says you don 't need to see his identification
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U.S. Senator Jack Reed @reed.senate.gov · 15/12/2025
A moment of silence for the loss of Ella Cook & Mukhammad Aziz Umurzokov, two promising bright lights whose lives were tragically cut short by a mass-shooter. And a moment of solidarity with the entire Brown University, Providence, and Rhode Island community.
youtu.be
Reed, Whitehouse, Britt Hold Moment of Silence in Memory of Brown University Shooting Victims
YouTube video by SenJackReed
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Reposted by Timothy Edgar
Jameel Jaffer @jameeljaffer.bsky.social · 15/12/2025
The "embarrassing, scandalous coda" of the Supreme Court's TikTok decision--new from @evelyndouek.bsky.social and me. www.theguardian.com/commentisfre...
theguardian.com
The US supreme court’s TikTok ruling is a scandal | Evelyn Douek and Jameel Jaffer
The decision means TikTok now operates under the threat that it could be forced offline with a stroke of Trump’s pen
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Timothy Edgar @timothy-edgar.bsky.social · 25/11/2025
FBI wiretap notices in misuse of campaign funds in California show the importance of notice as a constitutional protection for electronic searches, even as they make Sacramento insiders nervous, I tell @straightarrownews.bsky.social @danlevincomedy.bsky.social san.com/cc/californi...
san.com
California political players are concerned after FBI says it’s been listening
Dozens of players on the California political scene received letters from the FBI, letting them know the agency had been listening to them.
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Timothy Edgar @timothy-edgar.bsky.social · 18/11/2025
[Timothy Edgar] said the outage was “another alarming example of how dependent we have become on critical internet infrastructure, and how little the government is doing to hold big companies accountable.”
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Timothy Edgar @timothy-edgar.bsky.social · 18/11/2025
“Cloudflare is an essential company, providing services to a fifth of the internet and handling literally trillions of requests every day,” said Timothy Edgar, a computer science professor at Brown and an expert on cybersecurity.
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Timothy Edgar @timothy-edgar.bsky.social · 18/11/2025
I spoke with the @nytimes.com today about the @cloudflare.social outage. It's past time for Congress looks at the issue. Coming just after @awscloud.bsky.social and @azure.microsoft.com, our hands-off approach to Big Tech is becoming a national security liability. www.nytimes.com/2025/11/18/b...
nytimes.com
Cloudflare Says It Has Resolved Outage That Disrupted Parts of the Internet
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Timothy Edgar @timothy-edgar.bsky.social · 23/10/2025
"Encryption is a human right, and it's a bird right too." Celebrating Global Encryption Day with @josephhall.org & his parrot.
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Watson School at Brown @watsonschoolbrown.bsky.social · 23/10/2025
Is the internet too dependent on AWS? Experts weigh in — @timothy-edgar.bsky.social told ABC News that relying on only a few major big tech cloud providers creates significant infrastructure vulnerabilities.
ow.ly
Is the internet too dependent on AWS? Experts weigh in
A massive outage disrupted critical services, including airlines and payments.
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Reposted by Timothy Edgar
Alan Rozenshtein @alanrozenshtein.com · 21/10/2025
To call this administration a clown show would be to insult clowns, many of whom are highly trained professionals, unlike these absolute clueless amateurs.
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Anna Bower @annabower.bsky.social · 20/10/2025
Lindsey Halligan says I’m not a journalist. But if you think I am, and you value our our non-profit legal news and analysis, you can support our work here: givebutter.com/journalism/a... You can also follow me on Substack: annabower.substack.com/about
LH Lindsey Halligan @
© 8h
Sat, Oct 11
• Unknown set disappearing message time to 8 hours.
‹ You accepted the message request.
Options
Today
By the way - everything I ever sent you is off record. You're not a journalist so it's weird saying that but just letting you know.
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I'm sorry, but that's not how this works.
You don't get to say that in retrospect.
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Reposted by Timothy Edgar
Alan Rozenshtein @alanrozenshtein.com · 20/10/2025
HAHAHAHAHAHAHAHAHAHAHAHAHA
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Reposted by Timothy Edgar
Anna Lysyanskaya @annalysyanskaya.bsky.social · 15/10/2025
Brown responds.
brown.edu
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Timothy Edgar @timothy-edgar.bsky.social · 05/07/2025
A must read! My students have been reading for years.
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Timothy Edgar @timothy-edgar.bsky.social · 03/07/2025
Cybersecurity and privacy technology offer better solutions. Courts and lawmakers should do better!
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Timothy Edgar @timothy-edgar.bsky.social · 03/07/2025
Tl/dr: more control and less freedom online, as the justices decide to prioritize potential harms in uphold a ban on TikTok and age verification for accessing pornography.
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Timothy Edgar @timothy-edgar.bsky.social · 03/07/2025
My take on what the Supreme Court's term means for the internet, in Harvard Law Today (scroll down to Timothy Edgar, Lecturer on Law). hls.harvard.edu/today/evalua...
hls.harvard.edu
Evaluating the Supreme Court: Harvard Law faculty weigh in on 2024-2025 SCOTUS term  - Harvard Law School
Harvard Law faculty offer their thoughts on some of the most important Supreme Court decisions of this term — and how they could impact the law and society.
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Anna Lysyanskaya @annalysyanskaya.bsky.social · 02/06/2025
Identity/credential services should not be snooping on us. #nophonehome
aclu.org
Digital Identity Leaders and Privacy Experts Sound the Alarm on Invasive ID Systems | American Civil Liberties Union
Signatories, including the ACLU, warn officials of “Phone Home” feature of digital IDs that allows the government to track people’s daily lives
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Reposted by Timothy Edgar
Timothy Snyder @timothysnyder.bsky.social · 23/05/2025
It’s a special honor to be among those receiving honorary degrees from Brown. It’s a place that welcomed me and shaped me and challenged me and liberated me, and made possible everything that came after. I’m looking forward to celebrating this weekend with friends. www.brown.edu/news/2025-05...
brown.edu
Brown to confer honorary degrees on seven distinguished leaders at Commencement 2025
The University will bestow honorary degrees on a diverse group of community leaders, artists, writers, performers and scholars during its Commencement exercises on Sunday, May 25.
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Reposted by Timothy Edgar
Ryan Goodman @rgoodlaw.bsky.social · 21/04/2025
With renewed relevance, this explainer I wrote last month: Signal Gate: The Criminal Law Precedents That Are Most Relevant The key legal issues are: --> 18 U.S.C. 793(f)(1) of the Espionage Act - gross negligence --> Destruction of government records
justsecurity.org
Signal Gate: The Criminal Law Precedents That Are Most Relevant
A range of federal laws, including the Espionage Act and laws against the destruction of government records, could apply in Signal Gate.
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Reposted by Timothy Edgar
CyberScoop @cyberscoop.bsky.social · 16/04/2025
In a last-minute switch, the #CISA said it will continue funding a contract for #MITRE to manage the CVE program and other vulnerability databases. via @derekbjohnson.bsky.social cyberscoop.com/cisa-reverse...
cyberscoop.com
CISA reverses course, extends MITRE CVE contract
While the last-minute extension averts an immediate lapse in support, rival organizations are being stood up to supplant the global vulnerability system.
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Timothy Edgar @timothy-edgar.bsky.social · 15/04/2025
Facebook whistleblower testimony on Mark Zuckerberg's cooperation with CCP shows why Congress was wrong to focus exclusively on TikTok when US and other Big Tech companies play footsie with China in service of the bottom line. www.youtube.com/watch?v=7Zzx...
youtube.com
Facebook Whistleblower Makes Shock Claim About Mark Zuckerberg During Senate Testimony
YouTube video by Forbes Breaking News
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Timothy Edgar @timothy-edgar.bsky.social · 15/04/2025
Some riveting testimony from a whistleblower on Facebook's detailed cooperation with CCP censorship even as Mark Zuckerberg was denying this before Congress. www.youtube.com/watch?v=7Zzx...
youtube.com
Facebook Whistleblower Makes Shock Claim About Mark Zuckerberg During Senate Testimony
YouTube video by Forbes Breaking News
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
Terrific for Maine!
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
Principals Committee. It's the highest level in the National Security Council below the President.
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
Everything in the "Houthi PC small group" chat, including the name, should only have been discussed in classified channels. www.businessinsider.com/trump-admini...
businessinsider.com
I'm a former intelligence official. The Signal fiasco was as risky as leaving the nuclear codes in a Starbucks.
Timothy H. Edgar worked inside the intelligence community during the Bush and Obama administrations. He called the Signal debacle "remarkably reckless."
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
Historical tidbit: the reason it was called D-Day is so the Germans wouldn't know what DAY the attack was coming, which was sensitive even though they didn't know where the attack was coming.
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
Leaving the nuclear codes in a Starbucks would be reckless even if a journalist noticed and politely gave them back to you without publishing them.
businessinsider.com
I'm a former intelligence official. The Signal fiasco was as risky as leaving the nuclear codes in a Starbucks.
Timothy H. Edgar worked inside the intelligence community during the Bush and Obama administrations. He called the Signal debacle "remarkably reckless."
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
Remember when Trump tore up documents and flushed them down the WH toilet in his first term? Here's a good analysis in @lawfare.bsky.social of the laws that were broken then. www.lawfaremedia.org/article/trum...
lawfaremedia.org
Trump’s Presidential Records Act Violations: Short- and Long-Term Solutions
What are available mechanisms for accountability against a president who violates these rules?
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
There are also criminal penalties for intentionally making US government records disappear. 18 U.S.C. § 641 (“Whoever . . . disposes of any record . . . of the United States . . . [s]hall be fined under this title or imprisoned not more than ten years, or both.”)
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
The law specifically provides that using private messaging services without copying official accounts for records preservation subjects WH staff to disciplinary action. 44 U.S.C. § 2209.
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
Fun fact: Presidential Records Act provides that WH staff may not use a "non-official electronic messaging account" without copying an official account so records may be preserved. 44 U.S.C. § 2209.
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
Just so we're all clear on the law: it is a crime punishable by up to 10 years in prison to allow "information relating to the national defense through gross negligence" to be delivered to people not allowed to received it. Espionage Act, 18 U.S.C. § 793(f).
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
I wrote about about the Snowden leaks that criticizes excessive secrecy. The Signal chat is not a close call: these are the kind of secrets intelligence officials get medals for when they get them from other nations. www.brookings.edu/books/beyond...
brookings.edu
Beyond Snowden
Winner of the 2018 Chicago-Kent College of Law/Roy C. Palmer Civil Liberties Prize Safeguarding our privacy and our values in an age of mass surveillance America’s mass surveillance programs, once sec...
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
A high-level conversation about whether to conduct military operations, and following them in real time, is literally what the Situation Room is for. Saying they were unclassified insults our intelligence. www.businessinsider.com/trump-admini...
businessinsider.com
I'm a former intelligence official. The Signal fiasco was as risky as leaving the nuclear codes in a Starbucks.
Timothy H. Edgar worked inside the intelligence community during the Bush and Obama administrations. He called the Signal debacle "remarkably reckless."
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Timothy Edgar @timothy-edgar.bsky.social · 28/03/2025
Don't have classified conversations on commercial platforms - and yes, discussing military strikes before they happen is classified, I tell @businessinsider.com www.businessinsider.com/trump-admini...
businessinsider.com
I'm a former intelligence official. The Signal fiasco was as risky as leaving the nuclear codes in a Starbucks.
Timothy H. Edgar worked inside the intelligence community during the Bush and Obama administrations. He called the Signal debacle "remarkably reckless."
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Reposted by Timothy Edgar
Charles Mok @charlesmok.bsky.social · 27/03/2025
SignalGate Isn’t About Signal The Trump cabinet’s shocking leak of its plans to bomb Yemen raises myriad confidentiality and legal issues. The security of the encrypted messaging app Signal is not one of them. www.wired.com/story/signal...
wired.com
SignalGate Isn’t About Signal
The Trump cabinet’s shocking leak of its plans to bomb Yemen raises myriad confidentiality and legal issues. The security of the encrypted messaging app Signal is not one of them.
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Mike German @rethinkintel.bsky.social · 22/03/2025
I'll be speaking with @pgeddington.com and Michael Fox about my book, "Policing White Supremacy," on Wednesday, March 26 at 1pm at the Cato Institute in D.C. @cato.org Join us for a lively discussion! Register here: www.cato.org/events/polic...
cato.org
Policing White Supremacy: The Enemy Within
Somewhere between the tendency to see everything through the lens of race and racial oppression and the tendency to dismiss those dynamics altogether lies the truth in any given setting, including cri...
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Ryan Goodman @rgoodlaw.bsky.social · 21/03/2025
Holy cow❗ People apparently _returned_ from El Salvador for mistaken identity etc. in Alien Enemies Act deportations. This new development appears to show that the Trump administration's claim that they know all detainees sent to El Salvador prison were properly vetted may be dangerously false.⬇️
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