Lee Benfield @benf.org Retro fan, some time hobby reverse engineer, author of CFR java decompiler and random other pointless rubbish.
He.
https://www.benf.org
thunderseethe @thunderseethe.dev 
Orange Tsai @orange.tw This is 🍊
@hasherezade.bsky.social @hasherezade.bsky.social Programmer, #malware analyst. Author of #PEbear, #PEsieve, #TinyTracer. Private account. All opinions expressed here are mine only (not of my employer etc) ; https://hasherezade.net
Łukasz @lukasz.bsky.social Breaking bad UTF-8 implementations since 1991. I secure cybers and run trails. If I’m posting, I’m hopefully not on a trail. Views own. He/him
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
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
spq @spq42.bsky.social CTF player, Security engineer at Google, http://infosec.exchange/@spq ; @_spq__ on Twitter
Colin O'Flynn @oflynn.com Colin is a huge nerd. Hardware hacking, open-source hardware, electronics design, academic stuff, dog stuff in some order. Assistant Prof @ Dalhousie Uni, advisor/co-founder NewAE Technology Inc.
Natalie Silvanovich @natashenka.bsky.social Google Project Zero
Duncan Ogilvie @mrexodia.bsky.social and 100+ other projects. Love binary analysis and Windows internals. Dreaming about doing open source full time...
RE//verse @re-verse.io https://re-verse.io/ reverse engineering conference
Calle Svensson @zetatwo.bsky.social Security Engineer @ XTX. MSc in eng. physics & CompSci, dev & gamer. ❤️ music & long distance running. Wanna do a PhD sometime. Same U/N on all other sites
@livectf.bsky.social @livectf.bsky.social 
alkali @alkalinesec.bsky.social mobile security / symbolic execution . he / him
Andreas Zeller @andreaszeller.bsky.social Software researcher at https://cispa.de, working on #Fandango, #S3, #FuzzingBook, #DebuggingBook. Testing, debugging, analyzing, and protecting software for a better world. Find me at https://andreas-zeller.info/
Mark Russinovich @markrussinovich.bsky.social CTO of Microsoft Azure, author of novels Rogue Code, Zero Day and Trojan Horse, Windows Internals, Sysinternals tools. Opinions are my own.
Jon Gjengset @jonhoo.eu Rust live-coder and OSS tinkerer who loves teaching. I try to maintain a high SNR. Wrote Rust for Rustaceans. At Helsing.ai. Formerly AWS. Co-founded ReadySet. @jonhoo elsewhere. he/him/they
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/
Cornelius Aschermann @is-eqv.bsky.social Fuzzing & stuff https://hexgolems.com
Daniel Gruss @gruss.cc Aka @lavados #InfoSec University Professor @ #TUGraz. #meltdown, #spectre, #rowhammer, cache attacks, sustainable security. Produced a side channel security sitcom. https://gruss.cc https://x.com/lavados https://infosec.exchange/@lavados
Paged Out! @pagedout.bsky.social Paged Out! is a free magazine about programming, hacking, security hacking, retro computers, modern computers, electronics, demoscene, and other similar topics. Always accepting submissions of one-page articles.
@gannimo.bsky.social @gannimo.bsky.social 
DJ @dj.phoking.gay KEYWORDS ➡︎ cats, console hacking, program synthesis, reverse engineering, the rest of the technical crap doesn’t really matter. Friend-shaped and loving. <3
she/her 🏳️🌈🏳️⚧️
Lafayette, Indiana
Hexacon @hexacon.bsky.social Offensive security conference in the heart of Paris. 10-11th October 2025
https://www.hexacon.fr/
Xeno Kovah @xenokovah.bsky.social Interested in reverse engineering, firmware, bluetooth, trusted computing, and training. Founder of OpenSecurityTraining2 https://ost2.fyi
OffensiveCon @offensivecon.bsky.social OffensiveCon is a highly technical international security conference focused on offensive security only. Organized by Binary Gecko GmbH.
Satoshi @satoshi-tanda.bsky.social Software security engineer and trainer @ tandasat.github.io
Niklas B @niklasb.rce.associates research @ dfsec.com
Jonathan Salwan @jonathansalwan.bsky.social Program analysis, reverse engineering and vulnerability research at
Apple SEAR. Some other stuff on https://shell-storm.org and http://github.com/JonathanSalwan 
Travis Goodspeed @travisgoodspeed.bsky.social Author of books and tools for reverse engineering. Studebaker driver, but an awful mechanic. Home chip decapsulation.
Currently writing a new assembler, to be released in February.
@trailofbits.bsky.social @trailofbits.bsky.social 
Jason Geffner @geffner.bsky.social Senior Principal Engineer for AI & Product Security at Workday. Formerly at Google, Microsoft, and Amazon.
Lukas Arnold @lukasarnld.bsky.social Researching iOS' Cellular Protocol Stack @ SEEMOO
Studying CS @tuda.bsky.social
🌍 https://lukasarnold.de
Moritz Schloegel @mu00d8.bsky.social Faculty @CISPA Helmholtz Center doing software security, program analysis, and fuzzing
Previously at SEFCOM lab @ASU and @RUB
Tim Blazytko @mrphrazer.bsky.social Binary Security Researcher & Trainer
Website: https://synthesis.to
Stefan Marr @stefan-marr.de Interpreters, compilation, concurrency, and debugging tools.
Chris Wade @cmw.bsky.social Connecting dots and untying knots. This is my personal account and my opinions are my own. CTO @ Corellium / Producer
buherator @buherator.bsky.social "I'm interested in all kinds of astronomy."
https://scrapco.de
Mostly cross-posting from Fediverse: @buherator@infosec.place
Matthias Kaiser @matthiaskaiser.bsky.social Vulnerability Researcher. 0xACED. Ex-Apple. Posts are my own.
jvoisin @dustri.org Blog feed for https://dustri.org/b
Also available at https://mastodon.social/@jvoisin
Jesse D'Aguanno @x30n.bsky.social Hacker, Vuln Research, 2x winner DEF CON CTF, Founder & CEO Blackwing Intelligence, not a CISSP 
Marcel Böhme @mboehme.bsky.social Software Security @ MPI for Security and Privacy
PhD @NUS, Dipl.-Inf. @TUDresden
Research Group: http://mpi-softsec.github.io
Alex Plaskett @alexplaskett.bsky.social Security Researcher | Pwn2Own 2018, 2021, 2022, 2024 | Posts about 0day, OS, mobile and embedded security.
Peter Goodman @cxx.dev C++ developer specializing in source and binary program analysis and transformation.
daax @daax.bsky.social reverse engineering • secure processor design • system emulation • strategically bluescreening @the_secret_club
Peter Meerwald-Stadler @pmeerw.net 
GrapheneOS @grapheneos.org Open source privacy and security focused mobile OS with Android app compatibility.
https://grapheneos.org/
@cryptax.bsky.social @cryptax.bsky.social Android malware analysis. Ph0wn CTF founder. IoT hacking. Frequent speaker at Virus Bulletin, Insomnihack etc. Based in France.
Currently testing Bluesky. Otherwise on Mastodon.social.
jiska @naehrdine.bsky.social ɿɘɘniϱnɘ ɘƨɿɘvɘɿ
🎦 youtube.com/@jiskac
📝 naehrdine.blogspot.com
🐥 twitter.com/naehrdine
🎓 hpi.de/classen
📱 reversing.training
Adrian Herrera @adrianherrera.bsky.social Security researcher with an interest in formal methods.
B̶u̶i̶l̶d̶i̶n̶g̶ breaking things @ Interrupt Labs |
Teaching @ Australian National University
https://adrian-herrera.com
💥 leonjza @leonjza.bsky.social [ 'cto @sensepost.com', '@orangecyberdef', 'caffeine fueled', '(╯°□°)╯︵ ┻━┻', 'security guy', 'metalhead', 'i saw your password', 'KOOBo+KXleKAv+KXlSnjgaM=' ]- C @codecolorist.bsky.social @codecolorist.bsky.social Placeholder. Probably read-only
Grant H @digitalcold.bsky.social Android and baseband vulnerability researcher. Computer engineering PhD. 🇺🇸 (Washington, DC) || https://hernan.de/z
Gynvael Coldwind @gynvael.bsky.social Security researcher/programmer ⁂ Managing director @ HexArcana ⁂ @DragonSectorCTF founder ⁂ he/him
Farenain @farena.in I do compiler things that are commonly related to security. I like asian cultures. Here I just express my opinion and that of no one else. Español/English/日本語. I also have a PhD.
Jordan Wiens @psifertex.bsky.social Binary Ninja dev, Cuber, EUC rider.
Brendan Dolan-Gavitt @moyix.net AI researcher at XBOW. Security, RE, ML. PGP http://keybase.io/moyix/
eyb 🦔 @eybisi.bsky.social android, malware research, reverse engineering
eybisi.run
Alex Matrosov @matrosov.bsky.social 
SinSinology @sinsinology.bsky.social Pwn2Own 20{22,23,24,24.5}, i look for 0-Days but i find N-Days & i chase oranges 🍊
https://summoning.team/
maxrb.bsky.social @maxrb.bsky.social 
Areizen @areizen.bsky.social Reverse engineer @synacktiv.com. I appreciate Android related stuff
Quarkslab @quarkslab.bsky.social Securing every bit of your data
https://quarkslab.com
@momo5502.bsky.social @momo5502.bsky.social 
Romain Thomas (@rh0main) @rh0main.bsky.social Security engineer working on Android, reverse-engineering & obfuscation.
https://www.romainthomas.fr/ - https://obfuscator.re/ - https://lief.re
Synacktiv @synacktiv.com Offensive security company. Dojo of many ninjas. Red teaming, reverse engineering, vuln research, dev of security tools and incident response.
Kevin Edwards ( Retro game developer ) @kevedwardsretro.bsky.social Retired video game programmer. 40+ years developing videogames and software.
Creator of games for the BBC Micro, Electron, NES, SNES, PC, XBox, PS3/4, Mobile, Vita, 3DS.
Former LEGO Developer
I also rescue and archive old game development disks, DM me!
mcyoung 🏳️🌈 @mcy.gay a whimsicott crawled into your compiler and got stuck
call me sunny. yes! i am a furry artist!
⌨️ mcy.gay
🎨 art.mcy.gay
💰 art.mcy.gay/comms
🔞 @art.mcy.gay
📍Seattle, WA
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 .
cts @gf256.bsky.social Hacker and meme enjoyer
Meysam @r00tkitsmm.bsky.social Security Researcher.
iximeow @there.is.no.aarch64.mov made out of meat. making computers pretend to be computers
emma @carrot-c4k3.bsky.social cyber torture pioneer. pwn2own 2024 winner. hacking, shitposting, politics. en/ru. she/her 🏳️⚧️
Konrad Rieck 🌈 @rieck.mlsec.org Machine Learning and Security,
Professor of Computer Science at TU Berlin,
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 ✨🌈🦄
Martijn Grooten @martijngrooten.bsky.social Threat researcher, rights supporter, obsessive reader, marathon runner, eternal traveler, serial migrant, music blogger, lapsed mathematician.
https://lapsedordinary.net/
Signal: martijngrooten.37
Armin Ronacher @mitsuhiko.at Creator of Flask • earendil.com ♥︎ writing and giving talks • Excited about AI • Husband and father of three • Inhabits Vienna; Liberal Spirit • “more nuanced in person” • More AI content on https://x.com/mitsuhiko
More stuff: https://ronacher.eu/
Matt Godbolt @matt.godbolt.org Sometime verb, real person, lover of 8-bit computers, husband & father, trying to be a kind person. #blacklivesmatter; trans rights are human rights.
he/him
Aria Desires @gankra.bsky.social it's me, the gay cat who writes your docs~!
author of the rustonomicon and learn rust with entirely too many linked lists; worked on homestuck, rust-lang, swift-lang, firefox
she/her, trans, 30
Kate @katef.bsky.social If I unfollowed you, it's because you keep posting things without alt text
amos @fasterthanli.me hi, I'm amos! 🍃 they/them 🔮 "most level-headed AI user" 🫐 working on something dataflow-shaped 🦀 known for teaching rust and not much else
📚 https://fasterthanli.me
📺 https://youtube.com/@fasterthanlime
Yifan @yifan.lu ♥♡♡
https://twitter.com/yifanlu
https://mastodon.social/@yifanlu
Catherine @whitequark.org sorceress
James Munns @jamesmunns.com Notable Protocol Enjoyer.
Doing stuff, mostly in Rust and on Embedded systems.
Co-host @sdr-podcast.com
DMs (matrix): @jamesmunns:beeper.com
DMs (signal): jamesmunns.255
he/him
Kein Ort für Nazis
Shiny Quagsire @shinyquagsire.bowser.gay 27, He/Him | ARM(S) wizard, Nintendo kernel enthusiast • mastodon.social/@ShinyQuagsire • twitter.com/ShinyQuagsire
Mara Bos @mara.bsky.social Rust dev, Electronics engineer, Author, RustNL, RustWeek organizer, ADHD, Polyamorous, Lesbian, She/Her
Тsфdiиg @tsoding.bsky.social Recreational Programming
- https://www.youtube.com/@Tsoding
- https://www.youtube.com/@TsodingDaily
- http://twitch.tv/tsoding
⠀⢀⣰⣾⡿⣶⣿⠿⣶
⢠⣼⣿⣿⣷⣿⣿⣶⠉
⢸⣿⣿⣿⣿⣿⣿⠀⠀
argp @argp.bsky.social Hacker. Ascetic. Phrack author. The most technical boy in town.
netspooky @vacci.ne knuck if you buck
https://n0.lol
Mark Dowd @mdowd.bsky.social Internet hacker
Alex Ionescu @ionescu.bsky.social Windows Internals Author, Developer, Reverse Engineer, Security Researcher, Speaker, Trainer, and most recently Nation State Hacker.
Core OS Platform Developer at Apple, Hyper-V Vendor at Microsoft, Chief Architect at CrowdStrike and now Director at CSE.
Mathy Vanhoef @vanhoefm.bsky.social Prof. @KU_Leuven | Research in Network & Software Security | Known for WPA2 KRACK attack, Dragonblood, and FragAttacks | Open to consultancy | Ex-Postdoc NYU
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
Samuel Groß @saelo.bsky.social Working on Project Zero, Big Sleep, and V8 Security. Personal account.
roddux @roddux.bsky.social 
sam4k @sam4k.com pwning kernels & blogging on os internals 🌱
jam1garner @jam.computer Security Research, Blogging, Console Exploitation, Rust 🦀, Smash Modding, Emulation, Embedded Systems, Developer Sometimes | He/Him
Colin Finck @colinfinck.de Long-time ReactOS developer and Rust enthusiast, bringing both worlds together