Emile `iMIl' Heitor @imil.net FOSS contributor, NetBSD developer. DJ'ing and composing in my spare time * https://imil.net/fosscard/ * http://twitch.tv/imilnb
Gabriella "Biella" Coleman @biella.bsky.social Professor of Anthropology @Harvard, Hacker Studies & More https://gabriellacoleman.org/
Michael W|Warren Lucas @mwl.io Author of too many books. Sysadmin. Pet rats, martial arts, gelato. Punch white supremacists and TERFs. https://mwl.io.
He/him, but not the gay porn star.
Maitre Eolas @maitreeolas.bsky.social Avocat, praticien de la justice, débatteur public, potache.
Matthew Green @matthewdgreen.bsky.social I teach cryptography at Johns Hopkins. https://blog.cryptographyengineering.com
The Citizen Lab @citizenlab.ca We are an academic research unit at the University of Toronto investigating novel threats to democracy, human rights, and global security in the digital ecosystem.
Electronic Frontier Foundation @eff.org We're the Electronic Frontier Foundation. We're a nonprofit that fights for your privacy and free speech online. Find all of EFF's social media accounts at eff.org/social.
Binni Shah @binitamshah.bsky.social Linux Evangelist, Malwares , Security Enthusiast, Investor, Contrarian , Neurology , Philanthropist , Reformist ,Sigma female
the grugq @thegrugq.bsky.social 
Alec Muffett @alecmuffett.bsky.social everybody deserves good security.
https://alecmuffett.com/about
Filippo Valsorda @filippo.abyssdomain.expert RC F'13, F2'17
Cryptogopher / Go cryptography maintainer
Professional open source maintainer
https://filippo.io / https://github.com/FiloSottile
https://mkcert.dev / https://age-encryption.org
https://sunlight.dev / https://filippo.io/newsletter
Peter N. M. Hansteen (@pitrh@mastodon.social) @pitrh.bsky.social Puffyist, daemon charmer, penguin wrangler. Wrote The Book of PF, rants on security and sanity in IT (lack of)@ http://bsdly.blogspot.com. #OpenBSD #unix #cloud #security, Bergen, Norway.
See also https://nuug.no https://eurobsdcon.org, https://bsdcan.org
evacide @evacide.bsky.social Director of Cybersecurity @eff.org
Co-founder of @stopstalkerware.bsky.social
These opinions are my own, not my employers’
I did a TED talk once
Bill Pollock @nostarch.bsky.social No Starch Press Founder and President. Founder and Chair, Hacker Initiative
JP Aumasson @aumasson.jp https://aumasson.jp
cofounder & CSO @ taurushq.com
cryptographer (BLAKE2, BLAKE3, SipHash)
author of Serious Cryptography https://nostarch.com/serious-cryptography-2nd-edition and other books
Signal: jpa.01
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
Joseph Cox @josephcox.bsky.social Hacking/crime/privacy journalist. Author of DARK WIRE, buy here: https://www.hachettebookgroup.com/titles/joseph-cox/dark-wire/9781541702691/#preorder Co-founder of 404 Media. Signal: joseph.404 Email: joseph@404media.co
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
Kenn White @kennwhite.bsky.social cryptography • neuro • cloud • biscuits
ORD-DCA-NYC-BCN ✈️
kennwhite@mastodon.social
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
Jagmeet Singh @jagmeetsingh.ca Pronounced Jug(rhymes with hug)-MEET! | Former Leader of Canada's New Democratic Party | Le chef du NPD du Canada | Text me 👉🏽 613-801-8210
Katie Moussouris (she/her/she-hulk/she-ra)🌻 @k8em0.bsky.social Founder & CEO LutaSecurity @payequitynow MIT&Harvard visiting scholar, @MasonNatSec fellow, 1/2 Chamoru, 1/2 Greek all-American hacker
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
Damien Miller @damienmiller.bsky.social debugging, v: the process of inserting printf statements into code until one's errors reveal themselves
Naomi Klein @naomiaklein.bsky.social "End Times Fascism" book coming September 2026.
Doppelganger. This Changes Everything. The Shock Doctrine. No Logo. On Fire.
UBC Professor of Climate Justice.
🔗 https://linktr.ee/naomiklein
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
Lorenzo Franceschi-Bicchierai @lorenzofb.bsky.social Real-time historian of the late cyber capitalist era @TechCrunch, writing about the intersection of hackers, human rights, and spies.
Also writing a book about Hacking Team and the history of government spyware.
☎️ Signal: +1 917 257 1382
stacksmashing @stacksmashing.bsky.social Security researcher with a focus on hardware & firmware. I occasionally publish stuff on YouTube. Co-founder of
hextree.io. Contact: contact@stacksmashing.net
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
Exploit Code Not People @cooperq.com Cybertiger. Senior Staff technologist at @eff.org Fellow @citizenlab.ca Board member @openarchive.bsky.social. "Noted activist security type." Anti-fascist. he/him. My skeets do not represent views of my employers ⵣ🏴 signal: cooperq.01
Noura Aljizawi @noura.bsky.social Senior Researcher @Citizenlab.ca , UofT
Exploring the dark dimensions of digital power: authoritarianism, transnational repression & disinformation.
Matthew Garrett @mjg59.eicar-test-file.zip Former biologist. Actual PhD in genetics. Security, OS security teaching at https://www.ischool.berkeley.edu.
Blog: https://codon.org.uk/~mjg59/blog
Signal: @mjg.59
He/him
Opinions expressed here are mine, not my employer's
Bahr Abdul Razzak @syria.bsky.social Thwarting Online Autocrats, senior security researcher
@Citizenlab.ca 👨💻 @insyria.bsky.social is my other account
Marcus J. Carey 🏴☠️ @marcusjcarey.com 🔥 Hope Dealer | 🙃 Table Flipper | 🎨 Artist
🌟 Tribe of Hackers, US Navy, NSA, DIA, Builder
💀 Hacker | 🗣️ InfoSec, Coding, GenAI
💡 Simplifying tech, mentoring, building communities
📚 My new books >> Spot the Wolf & Hacker Inc.
🔑 Legacy > clout
Zack Whittaker @zackwhittaker.com Security editor, TechCrunch
Signal: zackwhittaker.1337
My stories: techcrunch.com/author/zack-whittaker
My newsletter/blog: this.weekinsecurity.com
Kim Zetter @kimzetter.bsky.social Journalist - cyber/natn'l security. Speaker. Georgetown adjunct prof. Author - COUNTDOWN TO ZERO DAY: Stuxnet and the Launch of the World's First Digital Weapon
Signal: KimZ.42
https://www.zetter-zeroday.com
John Scott-Railton @jsrailton.bsky.social Chasing digital badness. Senior Researcher at Citizen Lab, but words here are mine.
Bill Marczak @billmarczak.org senior researcher at @citizenlab.ca
Ron Deibert @rondeibert.bsky.social Director of The Citizen Lab at the University of Toronto's Munk School of Global Affairs & Public Policy
Author of Chasing Shadows https://chasingshadowsbook.ca/ 
John Hammond @johnhammond.bsky.social Hacker. Friend. Cybersecurity Researcher at Huntress.
Shane Huntley @shanehuntley.bsky.social Aussie security / tech guy.
Google Threat Intelligence. Co-founder Threat Analysis Group (TAG). Tweets are my own not my employers.
Thomas Brewster @thomasbrewster.bsky.social Forbes senior writer, covering privacy, surveillance and cybercrime. Editor of The Wiretap newsletter, featuring all of the above.
Christopher Parsons (he/him/his) @christopher-parsons.com Policy wonk. Street photographer. Torontonian. Not necessarily in that order.
Interests: privacy, national security, artificial intelligence, accountability, democratic governance.
Posts are mine, not my employer’s.
https://christopher-parsons.com
SwiftOnSecurity @swiftonsecurity.com computer security person. former helpdesk
Senator Ron Wyden @wyden.senate.gov U.S. Senator for Oregon. Rotisserie chicken enthusiast. Senate’s resident privacy hawk.
senatefinance.bsky.social
wydenpress.bsky.social
BabelColour @babelcolour.bsky.social I'm Stuart Humphryes (known online as BabelColour). I clean, repair, enhance and transform early colour photography.
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
Alexandre Borges @alexandreborges.bsky.social Vulnerability Researcher | Exploit Developer (speaker 3x at DEF CON)
Rik Ferguson @rikferguson.com Immigrant. VP Security Intelligence @Forescout, Co-founder @RespectInSec. Board @vaultree, Cybersecurity Futurist, Researcher, Award-winning writer/producer. He/Him. Pussy in bio.
Substack - Ferguson.ink
Slava Ukraini 🇺🇦
Siena Anstis @sanstis.bsky.social lawyer | senior legal advisor @ The Citizen Lab | PhD Fellow in Law @ University of Oslo | parent | currently: transnational repression, digital surveillance & international human rights law | EU-based (Geneva, Oslo) | https://sienaanstis.com
Abir Ghattas @abirghattas.bsky.social CIO & Director of Information Security @HRW • Feminist • @abirghattas@infosec.exchange •
PortSwigger Research @portswiggerres.bsky.social Web security research from the team at PortSwigger.
Rachel Tobac @racheltobac.bsky.social Hacker & CEO @SocialProofSec security awareness/social engineering training, videos, talks | 3X @DEFCON🥈 | Ex Chair @WISPorg | Ex @CISAgov Technical Advisory Council under Director Jen Easterly
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
Mehdi Hasan @mehdirhasan.bsky.social Editor and CEO, Zeteo
Author, ‘Win Every Argument’
British-American
Alexandria Ocasio-Cortez @aoc.bsky.social Waitress turned Congresswoman for the Bronx and Queens. Grassroots elected, small-dollar supported. A better world is possible.
ocasiocortez.com
Yarden Shafir @yardenshafir.bsky.social A circus artist with a visual studio license
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
Łukasz @maldr0id.bsky.social Military-grade reverse engineer @ Google, working on Android malware
Got mistaken for a member of Project Zero once.
Everything here is my own opinion
he/him ✨🌈🦄
Lukasz Olejnik @lukaszolejnik.bsky.social Security & Privacy. Data Protection. Research & Development. Engineering. Analyst. Policy. W3C. Consultant. Author. King’s College London/War Studies. me@lukaszolejnik.com
lukaszolejnik.com/books
blog.lukaszolejnik.com
techletters.substack.com
Alex Matrosov @matrosov.bsky.social 
James Kettle @jameskettle.com Director of Research at @portswigger.net
Also known as albinowax
Portfolio: https://jameskettle.com/
Piotr Bazydło @chudypb.bsky.social Principal Vulnerability Researcher at the watchTowr | Previously: @thezdi | https://chudypb.github.io
404 Media @404media.co it's a website (and a podcast, and a newsletter) about humans and technology, made by four journalists you might already know. like and subscribe: 404media.co
@halvarflake.bsky.social @halvarflake.bsky.social 
b33f @fuzzysec.bsky.social 意志 / Antiquarian @ IBM Adversary Services / Ex-TORE ⚔️🦅 / I rewrite pointers and read memory / AI Psychoanalyst / Teaching
at labs.calypso.pub
Jason Koebler @jasonkoebler.bsky.social Journalist @404Media.co
Signal: jason.404 // email: jason@404media.co
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app