David Buchanan @retr0.id reverse engineering, cryptography, exploits, hardware, file formats, and generally giving computers a hard time
Fedi: @retr0id@retr0.id
Macroblog: https://www.da.vidbuchanan.co.uk/blog/
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.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
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
@sam.ninja @sam.ninja Cybersecurity student @EPFL @ETH
CTF player @polygl0ts @0rganizers
AS62256
Robin Jadoul @ur4ndom.dev Cryptography @ 3MI Labs
PhD @ COSIC, KU Leuven
CTF @ organizers
Gynvael Coldwind @gynvael.bsky.social Security researcher/programmer ⁂ Managing director @ HexArcana ⁂ @DragonSectorCTF founder ⁂ he/him
cts @gf256.bsky.social Hacker and meme enjoyer
Ange @angealbertini.bsky.social Reverse engineer, file formats expert.
Corkami, CPS2Shock, PoC||GTFO, Sha1tered, Magika...
Security engineer @ Google. He/him.
impost0r @impost0r.bsky.social vulnerability researcher, apple, embedded, linux
twitter: @impost0r_
fediverse: @impostor@funami.tech 
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
✨ saleem ✨ @saleem.bsky.social my job is just beach, but sometimes it’s mountains ✨ he/him
https://twitter.com/saleemrash1d
Ryan Castellucci 🜬 @rya.nc Hacker. Enby. Administrative inconvenience. Purveyor of technically sophisticated shitposts.
Suing the UK for more gender, help with my legal bills: https://enby.org.uk/
Mastodon: https://infosec.exchange/@ryanc
Non-binary trans androgynous (they/them)
Cynthia @cynthia.re Security researcher amateur. Cert Slayer, Trans, WHOIS witch, nerdy about computer stuff. Hugger of BLÅHAJ.
she/her
https://cynthia.re- A @avamander.bsky.social @avamander.bsky.social
hypr @hyprdude.bsky.social vuln researcher+exploit dev | bordeaux enjoyer | friend of all cats | him/he | https://blog.coffinsec.com
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
TrendAI Zero Day Initiative @thezdi.bsky.social TrendAI Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
adafruit @adafruit.com Engineer - Founder of Adafruit - Brooklyn, NY USA - Manufacturer, open-source hardware, certified Minority and Woman-owned Business Enterprise (M/WBE) https://adafruit.com - support https://forums.adafruit.com & order/customer help support@adafruit.com
Devon Maloney @plailect.bsky.social Security Engineering and Architecture at Apple. Vulnerability research. Embedded systems in Swift. Alumnus RPISEC. Previously ReSwitched. 🏳️🌈
jam1garner @jam.computer Security Research, Blogging, Console Exploitation, Rust 🦀, Smash Modding, Emulation, Embedded Systems, Developer Sometimes | He/Him
Lukas Weichselbaum @webappsec.dev Leading Google's web security team.
Passionate about web security and making secure-by-default web development the norm. Contributed to web platfom security features like CSP, Fetch Metadata, COOP and Trusted Types.
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
Patrick Howell O’Neill @patrickhowelloneill.com Journalist at Bloomberg News in DC. Signal: @howelloneill.01, email: patoneill1@bloomberg.net https://www.bloomberg.com/authors/AXb8dLPHBFc/patrick-howell-oneill
dmnk @dmnk.bsky.social 【ＤΞＣＯＭＰＩＬΞ ＮΣＶΞＲ】
Android Red Team @google
Fuzzing @aflplusplus.bsky.social
CTF @enoflag
(opinions my own)
Dario Petrillo @dp1.bsky.social Competitive programmer && CTF player at @TheRomanXpl0it/@mhackeroni. dp1 or dp_1 on most sites
twitter.com/dario_petrillo
infosec.exchange/@dp_1
Pietro Borrello @pietroborrello.bsky.social Security Researcher | PhD Alumn at @SapienzaRoma | Pwner at @TheRomanXpl0it and @mhackeroni | https://infosec.exchange/@pietroborrello
Andrea Fioraldi @andreafioraldi.bsky.social Cyber Response Italian Supercazzola Technology Officer at
@mhackeroni Inc. Writing your favourite fuzz testing tools with
@aflplusplus. Security research at .
JinBlack @jinblack.bsky.social CTF Player @towerofhanoi and @mhackeroni | Security Researcher | Coach @CyberTeamItaly | Coach Team Europe | Space Security
Dirk-jan @dirkjanm.io Hacker at outsidersecurity.nl. Researches Entra ID, AD and occasionally Windows security. I write open source security tools and do blogs/talks to educate others on these topics. Blog: dirkjanm.io
mixy1 @mixy1.bsky.social hacker, zeyu lover, torry kisser
Zeyu (Zayne) @zeyu2001.bsky.social • CS @ Cambridge
• CTFs with Water Paddler / Blue Water
• Security at Electrovolt / Cure53
• DEFCON 31-32 finalist
• Also on Twitter and infosec.exchange
Bruno Modificato @brunomodificato.bsky.social CTFer for: @Water_Paddler / Security auditor @osec_io
Sometimes bug bounty and research
s1r1us | Mohan Sri Rama Krishna Pedhapati @mohansrk.bsky.social Founder @ElectrovoltSec Browser and Web Security @cure53berlin, Blockchain Security @osec_io, Rambling on http://mohansrkp.substack.com
434b @434b.bsky.social Vulnerability researcher | Fuzzing | Anything low-level excites me | Admin @ https://0x00sec.org | My tweets are my own | Blog: https://0x434b.dev
Kévin Gervot (Mizu) @mizu.re About me?
| Website: https://mizu.re
| Tool: https://github.com/kevin-mizu/domloggerpp
| Teams: @rhackgondins, @FlatNetworkOrg, @ECSC_TeamFrance
| From: https://twitter.com/kevin_mizu
Hana Dus�kov� 🏳️🌈 @hanicka.net Hey! It's me! Hana! 花
C++, CTRE, co_curl, SG7 chair, EWG co-chair, constexpr queen, italian greyhound is sleeping in my bed, a victim of bad unicode adoption
0xTen @0xten.bsky.social android/linux kernel @ Vigilant Labs | ctfs (pwn) w/ CoR + ELT
st98 @st98.bsky.social CTFs with zer0pts and BunkyoWesterns / Web Security / Posts random things mostly in Japanese
X: https://twitter.com/st98_
Mastodon: https://infosec.exchange/@st98
Website: https://st98.github.io/
pilvar @pilvar.bsky.social CTF w/ organizers and polygl0ts | ECSC swiss team & ICC team EU 24 | CS student @ EPFL
@hgarrereyn.bsky.social @hgarrereyn.bsky.social 
y011d4 @y011d4.bsky.social CTF player, mainly crypto
Michal Bláha @michalblaha.cz Ředitel @HlidacStatu, propagátor e-gov/chytrého státu (👉 http://moderni-stat.cz) a inovací. #ProEuro #racing🏎🏁.
kunte_ @kunte0.bsky.social CTF Player with FluxFingers | Ph.D. Student
evacide @evacide.bsky.social Director of Cybersecurity @eff.org
Co-founder of @stopstalkerware.bsky.social
These opinions are my own, not my employer's
I did a TED talk once
Quarkslab @quarkslab.bsky.social Securing every bit of your data
https://quarkslab.com
Zardus @zardus.bsky.social Retired DEFCON CTF org.
Shellphish Captain Emeritus.
ASU Prof.
angr hacker.
pwn.college sensei.
Looking for students/interns!
https://yancomm.net
https://github.com/zardus
https://defcon.social/@Zardus
Rick de Jager @rdj.bsky.social CyberSecurity student at TU Eindhoven - CTF with https://superfl.at / https://org.anize.rs
Internet Archive @archive.org Internet Archive is a non-profit research library preserving web pages, books, movies & audio for public access. Explore web history via the Wayback Machine. 
DEF CON @defcon.bsky.social The world’s premier hacker conference. Serving the global hacker community since 1993.
Defcon.org
Forum.defcon.org
Defcon.social
Jay Foreman @jayforeman.bsky.social ‘This Way Up: When Maps Go Wrong’ (the MAP MEN BOOK) is available now: https://lnk.to/mapmen 🗺️ 📕
Zed @zed.dev A next-generation code editor that enables high-performance collaboration with AI and your team.
zed.dev
Rebane @rebane2001.bsky.social 🇪🇪🏳️⚧️ | Archivist | 13 CVEs in Chrome | CSS sophomore | MapartCraft | Horse | rebane2001#3716 | Lyra 🦊
she/her
https://lyra.horse/
@rebane2001@infosec.exchange
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
Freya Holmér @freya.bsky.social 🎮 tech artist/shader sorceress/math dork
🌐 acegikmo.com
🎥 youtube.com/@acegikmo
🏗️ Shader Forge / Shapes / https://half-edge.xyz
📡 ex-founder of Neat Corp
🪡 neoluddite
my kids:
🥪 @toast.acegikmo.com
🥗 @salad.acegikmo.com
🐈⬛ @thor.acegikmo.com
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
Troy Hunt @troyhunt.com Founder & CEO of @haveibeenpwned.com, the most trusted name in data breach intelligence. Speaker, blogger, Microsoft Regional Director. Gold Coast, Australia.
Michal Špaček @spazef0rze.bsky.social In your web, securing your app. Hacker, webdev, speaker, engineer. Security shoptet.cz, ex-report-uri.com, ex-teenager. HTTPS = How To Transfer Private Sh💩. Also https://infosec.exchange/@spazef0rze
Marco Squarcina @minimalblue.bsky.social Senior Scientist @TU Wien / Web & Mobile Security / #drumandbass DJ
🚩 with @mhackeroni.bsky.social We_0wn_Y0u kukhofhackerei Team Austria
🔗 https://minimalblue.com/
Signal @signal.org Signal is a nonprofit end-to-end encrypted communications app. Privacy isn’t an optional mode, it’s the way Signal works. Every message, every call, every time. https://signal.org/donate/
Michal Melewski @carste1n.bsky.social Security Engineer @ Cloudflare,
ex-Google ISE,
I use bad software and bad machines for the wrong things.
My writing: https://carstein.github.io
mhackeroni @mhackeroni.bsky.social Italian CTF team. DEF CON finalists. Cyber. Pasta. And now even satellites?! ✉️ info@mhackeroni.it
PortSwigger @portswigger.net We are a leading provider of software and learning on web security. We make Burp Suite and the Web Security Academy.
szymex73 @szy.bsky.social 🎶🎮 & CTFs | Capturing 🚩 with justCatTheFish
Go @golang.org Go will make you love programming again. We promise.
https://go.dev/
Binary Ninja @binary.ninja https://binary.ninja/
Made with ❤️ by https://vector35.com/
JaGoTu 🦊🏳️🌈:unverified: @jagotu.infosec.exchange.ap.brid.gy Diving headfirst into computers. Reverse engineering, pentesting, the more challenging the more fun! I have opinions. CTFs with WreckTheLine. BetaWiki founder. 🇨🇿
[bridged from https://infosec.exchange/@jagotu on the fediverse by https://fed.brid.gy/ ]
Sijisu @sijisu.eu computers are an insecure mess
Computer Science student mff.cuni.cz, CTFs with wrecktheline.com & czechcyberteam.github.io
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app