David Adrian @davidcadrian
Adding value @googlechrome security. Host @scwpod, cofounder of @censysio. “Refreshing”. "Ruthlessly practical". Go blue! dadrian.io Washington, DC Joined February 2009-
Tweets14K
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Wrote up some thoughts for how Okta is getting squeezed from all sides: squished by Rippling at the bottom, Msft at the top, and other markets and startups in the middle. Check it out in @rosshaleliuk's excellent Venture in Security: ventureinsecurity.net/p/the-unbundli…
precursor
I shit you not, I was at Duke law school for under 10 minutes before I heard students describe how they were committing tax fraud.
Wrote some words about memory safety and JITs. Basically, there are things we want out of hardware, but it's not MTE and it still involves migrating to memory safe languages
“it’s just an OpenAI rapper”
Liz Izhikevich, an assistant professor in UCLA Samueli’s electrical and computer engineering department, was named in the 2025 Forbes 30 Under 30 list for her work on internet performance and security on Earth and in space. dailybruin.com/2025/05/13/for…
How many times are we gonna send Ryan Gosling to space?
DC has become a “papers, please” city under Trump, with masked agents demanding residents show their IDs at random locations around the city.
DC has become a “papers, please” city under Trump, with masked agents demanding residents show their IDs at random locations around the city.
As a reminder, Skynet becomes self-aware tonight, 28 years ago. 2:14am eastern time, August 29th Any foundation model companies have anything they want to say?
Taylor Swift's engagement is actually very relevant to monetary policy because she is the most powerful stimulus tool we have
Some thoughts I had two years ago about what good product managers do. I'm glad to reread and note that my points still broadly resonate.
how did they sign this without Docusign
Now that launching true collab editing is imminent, we are starting to talk about the reality of building a realtime system like this.
Now that launching true collab editing is imminent, we are starting to talk about the reality of building a realtime system like this.
A sex club?

Thomas H. Ptacek @tqbf
33K Followers 611 Following Don't look at me sideways. Don't even look me straight on. bsky:@sockpuppet.org
Matthew Green is on B... @matthew_d_green
150K Followers 1K Following I teach cryptography at Johns Hopkins. Mostly on BlueSky these days at https://t.co/GI4QlxZr2S.
Adriana Porter Felt @__apf__
64K Followers 928 Following I like writing silly Tweets, but that doesn't pay so I also type at @googledeepmind. Principal Engineer. ex-@googlechrome. volunteer @2ndharvest. 🇺🇸🇨🇷
Deirdre Connolly¹ @durumcrustulum
6K Followers 3K Following • 🜗 🝒 🝲 crypto as in 'cryptography' 🝳 🝡 🜖 • ¹ isogenist, co-host @SCWpod, @durumcrustulum.com on 🦋
SwiftOnSecurity @SwiftOnSecurity
405K Followers 9K Following computer security person. former helpdesk.
kennyog @kennyog
8K Followers 2K Following Professor of Computer Science at ETH Zurich. Views my own. Apparently in a semi-religious crypto/privacy cult. Join us! He/him.
Brendan Dolan-Gavitt @moyix
30K Followers 6K Following Building offsec agents: https://t.co/G9EtnC2Gl3 PGP https://t.co/3WXr0RfRkv
apenwarr @apenwarr
15K Followers 2K Following wvdial, bup, sshuttle, netselect, popularity-contest, redo, gfblip, GFiber, and now @Tailscale doing WireGuard mesh. Top search result for "epic treatise."
Lúcás Meier @cronokirby
9K Followers 1K Following Cryptographer at @penumbrazone. My opinions do not yadda yadda. Did an MSc (Computer Science) @EPFL. Avid, not fast runner. https://t.co/yOuGtLnGMF on bsky.
Halvar Flake @halvarflake
44K Followers 3K Following Choose disfavour where obedience does not bring honour. I do math. And was once asked by R. Morris Sr. : "For whom?" @[email protected]
lcamtuf @lcamtuf
38K Followers 498 Following Substack: https://t.co/yFvmNisGW3 Homepage: https://t.co/iFAXZxCO5H
Kyle Lady (@kylelady.... @kylelady
814 Followers 1K Following Day job: 🦖 #dinosec 🦖 @ciscosecure Night job: rage-RTin. Interests include pup, leftism, @umichathletics, & #a2council. he/him
Colm MacCárthaigh @colmmacc
35K Followers 2K Following VP / Distinguished Engineer at Amazon Web Services. Also: Open Source and Apache, Cryptography, Irish Music, mediocre Photography.
peter honeyman @peterhoneyman
2K Followers 745 Following college professor 👨🏽🎓 (ret.). relocated to @[email protected] and https://t.co/uGFNABFWcE
🎻 EricLaw ➡️ B... @ericlaw
14K Followers 3K Following I moved to https://t.co/GaDsKjTVcU Twitter died. X is the Nazi bar. Hope fights in the dark.
sofía celi @claucece
8K Followers 5K Following Proud LatinAmerican • "Legendary quantum lady/cryptographer" • Researcher @brave • she/they • hrpc/pquip co-chair @inretafo anti-fraud @w3c @otr_im @LondonU
Ryan Hurst @rmhrisk
6K Followers 3K Following Dropout. Father. I build things. Security, Cryptography, Engineering, Entrepreneurship. @peculiarventure + xMSFT + xGOOG ++. also on https://t.co/FaDXJfnZBm & Bluesky
not here; find me els... @ElleArmageddon
28K Followers 3K Following find me on bluesky or linkedin; i’m never coming back
mgoblog @mgoblog
57K Followers 600 Following Inactive. Same username at Bluesky. header via @DJPhotoVideo
Adam Goodman @akgood
1K Followers 527 Following Trying not to be here much anymore. Find me on the 🦋 or 🐘 platforms, I guess.
Slorilou @Slorilou796050
0 Followers 293 Following
Bella Favor @bellafavouroffi
56 Followers 519 Following 📡ENTREPRENEUR 🏅EXPERT TRADER 💹FOREX TRADER 💱BITCOIN MINER 💻BINARY TRADE ACCOUNT MANAGER 📞24/7 ONLINE ASSISTANCE 📥DM
Sacha Servan-Schreibe... @sachaservan
110 Followers 177 Following Cofounder @TinfoilAI | Building private AI | MIT PhD
MadgeJonson @4oX0qcCX1t446d
5 Followers 398 Following
GloriaMcDonald @BRE38QNT4MW0w35
6 Followers 422 Following
Colin Man @yourtruecolin
11 Followers 104 Following
Oomefau @Oomefau230
91 Followers 2K Following
Jose Storopoli @jose_storopoli
156 Followers 372 Following Cypherpunk, PhD, Computer Scientist, Bayesian, Stoic. BJJ & Barbell aficionado. "running bitcoin" since 2020. Open source Maximalist. Software Eng @AlpenLabs.
AlexTechTalk @alextechmv
36 Followers 260 Following Funding the future 🚀 @TechFutureFund, chatting trends 🗣️ @InnovatePod, writing ✍️ @StartupStories.
naoseihackear @naoseihackear
0 Followers 105 Following
Reiehe @Reiehe8347
9 Followers 511 Following
Vinay⚡ @hack_n_code
208 Followers 2K Following Tester of pens, AI prompter connoisseur. Terrible Speller. All thoughts are my own 💭
Eric D @EmailEricD
1K Followers 5K Following I asked Grok “what is the shape of my head” and it came back with “potato.” Ł
Easiriehie @Easiriehie5272
1 Followers 489 Following
Aron Kshlerin @kshlerin41399
26 Followers 2K Following
Oukose @Oukose6283786
88 Followers 1K Following
Evan @evanssisreal
246 Followers 3K Following
Rodrigo Branco @bsdaemon
13K Followers 4K Following Chief Architect, Security Research Binarly. Grsecurity. BYOS - Advisor Dartmouth's Hacker in Residence OffensiveCon, Langsec, DistrictCon, Secdev Committee
Ford Smith @fordhsmith
10K Followers 5K Following VC + investing in a peaceful future 🌎🤖🍄⚡️🌱🧘🏼 Founder @ultranative & @centerforminds.
Joan Fronske @JoanFronske
549 Followers 1K Following Director of Corporate Communications - Identity Security, Network Security, and Passwordless Authentication; skiing and the arts.
Alex Pham @alexsonpham
635 Followers 1K Following Politetech Software Co-Founder. PoliteAI Founder. AI, Code & Coffee ☕.
Jedda Wignall @jedda
133 Followers 313 Following 🇦🇺 Technology & security professional with a focus on Apple platform management, device trust, and cyber risk strategy & governance. CISSP.
wandering_dev @wandering_d3v
4 Followers 25 Following
Rerpaw @Rerpaw86072
112 Followers 3K Following
Asauorpos @Asauorpos712
8 Followers 657 Following
Georgije Vukov @vuk0v
166 Followers 2K Following
Della @della_tanner12
293 Followers 3K Following
Ilari Stenroth @istenrot
662 Followers 4K Following
Constantin Câmpean @costinEEST
645 Followers 823 Following Wrangling the DOM by day, sheeting by night. https://t.co/Hs1JuCFA63 (RO) | https://t.co/nTexeMVYO3
Michelle Rodriquez @michelle_R4you
100 Followers 190 Following Where elegance meets purpose 🌸 — every step shaped by passion and precision.
Gabe Eldred @215Gabe
472 Followers 3K Following spend experiences @capitalone | prev @chase @greenlightcard @americanexpress
tuckner @tuckner
2K Followers 821 Following Finding bad software extensions at https://t.co/dhLUjMRP1I
dina kozlov 🐀 @dinasaur_404
3K Followers 952 Following pm on developer platform @ cloudflare! 👩💻 3 letter acronym teams only 🙅♀️ past: dns, tls. current: wfp, mcp 🤸♀️✨
Javier Fernández @lajava77
333 Followers 681 Following Free Software hacker working at Igalia in the Browsers and Web Platform area.
Ravi Nayyar @ravirockks
1K Followers 4K Following Software & CNI Law | PhD Candidate @Sydney_Uni | Fellow @ASPI_org | Associate Fellow @ Social Cyber Institute | Blogging @TechLegalUpdate | #KalikaMataKiJai
Bertha S. Garr @bertha6587
54 Followers 876 Following When we all lend a hand, abundance follows for everyone.❤️❤️❤️
okay @musicncode
665 Followers 2K Following Don't look back in anger. Let it all work out. Robots, software, football, shitposts and music.
shane nelson ☔️�... @shane_mnelsonn
46 Followers 661 Following
Thomas H. Ptacek @tqbf
33K Followers 611 Following Don't look at me sideways. Don't even look me straight on. bsky:@sockpuppet.org
Matthew Green is on B... @matthew_d_green
150K Followers 1K Following I teach cryptography at Johns Hopkins. Mostly on BlueSky these days at https://t.co/GI4QlxZr2S.
Adriana Porter Felt @__apf__
64K Followers 928 Following I like writing silly Tweets, but that doesn't pay so I also type at @googledeepmind. Principal Engineer. ex-@googlechrome. volunteer @2ndharvest. 🇺🇸🇨🇷
Deirdre Connolly¹ @durumcrustulum
6K Followers 3K Following • 🜗 🝒 🝲 crypto as in 'cryptography' 🝳 🝡 🜖 • ¹ isogenist, co-host @SCWpod, @durumcrustulum.com on 🦋
Filippo Valsorda @fil... @FiloSottile
46K Followers 1 Following Cryptogopher / Go crypto maintainer / @kateconger-knower / RC F'13, F2'17 / #BlackLivesMatter / he+him https://t.co/ZE4RtJ1xqD / https://t.co/qfth7zr00W / https://t.co/j1grpEm8uR
apenwarr @apenwarr
15K Followers 2K Following wvdial, bup, sshuttle, netselect, popularity-contest, redo, gfblip, GFiber, and now @Tailscale doing WireGuard mesh. Top search result for "epic treatise."
Halvar Flake @halvarflake
44K Followers 3K Following Choose disfavour where obedience does not bring honour. I do math. And was once asked by R. Morris Sr. : "For whom?" @[email protected]
lcamtuf @lcamtuf
38K Followers 498 Following Substack: https://t.co/yFvmNisGW3 Homepage: https://t.co/iFAXZxCO5H
Matthew Garrett (@mjg... @mjg59
28K Followers 278 Following Not here. Fedi: @[email protected] Bsky: @mjg59.eicar-test-file.zip Signal: @mjg.59 Blog: https://t.co/CVivdtMBWe
Lea Kissner @LeaKissner
24K Followers 373 Following (Now former) CISO @Twitter. Privacy eng, security, crypto & build respect. they/them Trying out @[email protected]
Kyle Lady (@kylelady.... @kylelady
814 Followers 1K Following Day job: 🦖 #dinosec 🦖 @ciscosecure Night job: rage-RTin. Interests include pup, leftism, @umichathletics, & #a2council. he/him
Colm MacCárthaigh @colmmacc
35K Followers 2K Following VP / Distinguished Engineer at Amazon Web Services. Also: Open Source and Apache, Cryptography, Irish Music, mediocre Photography.
peter honeyman @peterhoneyman
2K Followers 745 Following college professor 👨🏽🎓 (ret.). relocated to @[email protected] and https://t.co/uGFNABFWcE
🎻 EricLaw ➡️ B... @ericlaw
14K Followers 3K Following I moved to https://t.co/GaDsKjTVcU Twitter died. X is the Nazi bar. Hope fights in the dark.
Ryan Hurst @rmhrisk
6K Followers 3K Following Dropout. Father. I build things. Security, Cryptography, Engineering, Entrepreneurship. @peculiarventure + xMSFT + xGOOG ++. also on https://t.co/FaDXJfnZBm & Bluesky
Alex Stamos @alexstamos
90K Followers 2K Following You can find me at: https://t.co/Enct5hx8bS https://t.co/CuE5u72rhW
mgoblog @mgoblog
57K Followers 600 Following Inactive. Same username at Bluesky. header via @DJPhotoVideo
Adam Goodman @akgood
1K Followers 527 Following Trying not to be here much anymore. Find me on the 🦋 or 🐘 platforms, I guess.
Damn Arbor @damnarbor
3K Followers 170 Following Award winning local journalism covering Ann Arbor and Ypsilanti.
martin_casado @martin_casado
68K Followers 3K Following GP @ a16z ... questionable heuristics in a grossly underdetermined world
Mike Solana @micsolana
376K Followers 1K Following billionaire media tycoon and former mayor of san francisco. disinformation researcher. cmo @foundersfund. editor-in-chief @piratewires 🏴☠️
Ally Bell @withtenacity
3K Followers 999 Following pursuing beautiful systems // engineering @olincollege
delian @zebulgar
223K Followers 905 Following space drugs and arms @vardaspace | village idiot/partner @foundersfund
dina kozlov 🐀 @dinasaur_404
3K Followers 952 Following pm on developer platform @ cloudflare! 👩💻 3 letter acronym teams only 🙅♀️ past: dns, tls. current: wfp, mcp 🤸♀️✨
@jason @Jason
1.0M Followers 6K Following first investor in https://t.co/M6cblbFld9 Host: @twistartups @theallinpod; I also invest in 100 startups a year @launch & @founderuni [email protected] for life
Sriram Krishnan @skrishnan47
8K Followers 12 Following Senior Policy Advisor for AI. Working on American dominance in AI!
dick costolo @dickc
1.4M Followers 743 Following
Joey Politano 🏳️... @JosephPolitano
88K Followers 2K Following Writing a data-driven newsletter about economics @ https://t.co/IanQ9oPoPi | Nuance? In this economy? | Full Employment Stan, Brazilian Coffee Tariff Victim
Orin Kerr @OrinKerr
121K Followers 4K Following Professor, Stanford Law School. Author, The Digital 4th Amendment: https://t.co/NScgWkDNEI
Bojan Rajković @bojanrajkovic
663 Followers 576 Following On the internet, no one knows you're a cat. Mostly at https://t.co/OCrOxtbT1V these days.
Yarden Shafir @yarden_shafir
24K Followers 309 Following A circus artist with a visual studio license
Tweets from Zach Wein... @zachweinberg
74K Followers 422 Following I do healthcare & tech stuff. Founder of https://t.co/uJTXjZVNJt, Flatiron Health (acq @Roche~$2b) & Invite Media (acq @Google~$81m). Invest @ https://t.co/2D00yW2Be4
christiano boria @christianoboria
679 Followers 3K Following studying software and AI | student of startups & markets | @coatuemgmt @goldmansachs @brownuniversity @nyu_courant 🇺🇸
David Kleidermacher @DaveKSecure
1K Followers 392 Following @Google Security/Privacy - @Android, @GooglePlay, @madebygoogle, team ASAP and team DSAP | Opinions my own | linkedin davekleidermacher, @[email protected]
Liz Izhikevich @LizIzhikevich
95 Followers 175 Following Assistant Prof @ECE_UCLA working on Networking & Security; Research Scientist @Censysio; CS alum of @UCSanDiego & @Stanford
Zed @zeddotdev
56K Followers 46 Following A next-generation code editor that enables high-performance collaboration with AI and your team. https://t.co/4Ua0UqLrsv
Evan Boyle @_Evan_Boyle
532 Followers 274 Following Founder & CEO @gensx_inc - the AI framework for TypeScript developers Formerly @PulumiCorp, @AmazonAds, @Azure
Claire Lehmann @clairlemon
248K Followers 6K Following Founder, editor @quillette, contributing writer @australian, @thedispatch 📧 subscribe: https://t.co/04OP3stmMN
Ariel Herbert-Voss @adversariel
9K Followers 924 Following Founder @RunSybil. likes: offsec, LLMs, and dumb memes. prev: research scientist @OpenAI / CS PhD @Harvard / @defcon AI Village
Steve Vladeck @steve_vladeck
197K Followers 3K Following @ksvesq’s husband; father of daughters; prof. @GeorgetownLaw; #SCOTUS nerd @CNN & https://t.co/idn6dtcBR3; NYT bestseller: https://t.co/FmqTSPSMH3; #LGM
Steven Sinofsky @stevesi
209K Followers 5K Following Subscribe https://t.co/Xm1OaUU8jk • seed investing • writing • ॐ •🙏• I use '—' & 💀 tweets saved 90 @days•🇺🇸 🇮🇱
David Shor @davidshor
79K Followers 4K Following Head of Data Science at Blue Rose Research, based in NYC, originally from Miami. I try to elect Democrats. Views are my own. he/him🌹
James Cowling @jamesacowling
8K Followers 402 Following @convex_dev CTO. Dropbox storage designer. VR Revisited author. Bad motorcycle mechanic. MIT systems researcher turned database shill.
Jack McCloy @JackMcCloy
2K Followers 761 Following Coder, manager, angel investor. Currently @SnowflakeDB. Previously @Amplitude_HQ, @WayUp. Married to @shinjikim.
Justine Moore @venturetwins
125K Followers 972 Following Partner @a16z AI 🤖 and twin to @omooretweets | Investor in @elevenlabsio, @krea_ai, @bfl_ml, @hedra_labs, @WaveFormsAI, @ViggleAI, & more
Chris Arnade 🐢🐱... @Chris_arnade
92K Followers 3K Following Walking the world, one city at a time. I like turtles, cats, & buses. Subscribe to my Substack: https://t.co/j6mE4TVfBl
Rob Picard @itsRobPicard
553 Followers 606 Following
Matthew Ball @ballmatthew
109K Followers 101 Following Entrepreneur, advisor, inter/national bestselling author, and TV/film/game producer (also: not a VC). Retired wildfire fighter, active battle royaler.
Drew LaFountaine🇺�... @lafountainedrew
123 Followers 2K Following
Corinne Marie Riley @CorinneMRiley
9K Followers 3K Following Partner @GreylockVC investing in data and AI products at the infrastructure and application layers
Mike Shaver @shaver
5K Followers 1K Following dad. optimist. advisor. aspiring leader & technologist. friend. ex Netscape/Mozilla/Facebook/Oculus/Real/integrate.ai/VGS/Shopify. he/him. can I help?
Scott Westover @ScottWestover
428 Followers 1K Following Head of Chrome + Privacy Sandbox PR @google
Brooke LeBlanc @brookeleblanc
24K Followers 857 Following sales | runner | reader | founded @joinedgeapp
Patrick Mayhorn @patrick_mayhorn
2K Followers 1K Following Creator of @TheAggship, a Utah State outlet | G5 propagandist @meetatmidfield, @FieldFlipping