Tailscale @tailscale.com Your private programmable network.
vx-underground (automated mirror) @vxundergroundre.bsky.social The largest collection of malware source code, samples, and papers on the internet.
Password: infected
(unofficial, this is a bot! Maintained by a private individual, the bot can't handle retweets or replies, support soonish)
Advanced Fuzzing League @aflplusplus.bsky.social We want to make fuzzing better and better
Follow for updates on AFL++ & LibAFL
Тsфdiиg @tsoding.bsky.social Recreational Programming
- https://www.youtube.com/@Tsoding
- https://www.youtube.com/@TsodingDaily
- http://twitch.tv/tsoding
⠀⢀⣰⣾⡿⣶⣿⠿⣶
⢠⣼⣿⣿⣷⣿⣿⣶⠉
⢸⣿⣿⣿⣿⣿⣿⠀⠀
radareorg @radareorg.bsky.social The official radare2 account in the Blueskyverse
ESET Research @esetresearch.bsky.social Security research and breaking news straight from ESET Research Labs.
welivesecurity.com/research/
mhackeroni @mhackeroni.bsky.social Italian CTF team. DEF CON finalists. Cyber. Pasta. And now even satellites?! ✉️ info@mhackeroni.it
Xeno Kovah @xenokovah.bsky.social Interested in reverse engineering, firmware, bluetooth, trusted computing, and training. Founder of OpenSecurityTraining2 https://ost2.fyi
Hexacon @hexacon.bsky.social Offensive security conference in the heart of Paris. 10-11th October 2025
https://www.hexacon.fr/
LaurieWired @lauriewired.bsky.social researcher @google; serial complexity unpacker
ex @ msft & aerospace
Linus Tech Tips @linusmediagroup.com The official Bluesky of the Linus Tech Tips YouTube channel.
MIT Press @mitpress.bsky.social Committed to the daily re-imagining of what a university press can be since 1962.
Website: https://mitpress.mit.edu
The Reader (our home for excerpts, essays, & interviews): https://thereader.mitpress.mit.edu
MIT Press Direct: https://direct.mit.edu/
Jenn @zolutal.bsky.social PhD Student at ASU | blog.zolutal.io
Captain of Shellphish | shellphish.net
she/her
Duncan Ogilvie @mrexodia.bsky.social and 100+ other projects. Love binary analysis and Windows internals. Dreaming about doing open source full time...
OpenSecurityTraining2 @opensectraining.bsky.social 501(c)(3) Nonprofit providing Open Source and Open Access computer security training material. #OST2 re-launched July 2021!
pilvar @pilvar.bsky.social CTF w/ organizers and polygl0ts | ECSC swiss team & ICC team EU 24 | CS student @ EPFL
polygl0ts @polygl0ts.ch Official @epfl.ch CTF team
defund @defund.bsky.social cryptography, ctf
priv.pub
Robin Jadoul @ur4ndom.dev Cryptography @ 3MI Labs
PhD @ COSIC, KU Leuven
CTF @ organizers
J. A. Guerrero-Saade (JAGS) @jags.bsky.social VP of Intelligence and Security Research, Senior Technical Fellow (AI) @ SentinelOne.
Distinguished Fellow and Adj Professor @ Hopkins SAIS Alperovitch Institute. Three Buddy Problem Co-Host. LABScon Founder, Cyber Paleontologist, Fourth-Party Collector.
Ivanlef0u @ivanlef0u.bsky.social ivanlef0u.fr
es3n1n @es3n1n.bsky.social developer, reverse engineer, occasionally a ctf player
https://github.com/es3n1n
Rick de Jager @rdj.bsky.social CyberSecurity student at TU Eindhoven - CTF with https://superfl.at / https://org.anize.rs- B @blasty.bsky.social @blasty.bsky.social
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.
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/
Alexandre Borges @alexandreborges.bsky.social Vulnerability Researcher | Exploit Developer (speaker 3x at DEF CON)
X-Force @xforce.bsky.social IBM X-Force
0xor0ne @0xor0ne.bsky.social | CyberSecurity | Reverse Engineering | C and Rust | Exploit | Linux kernel | PhD | Only My Opinions :) |
Linux Kernel Security @linkersec.bsky.social Links related to Linux kernel security and exploitation.
Maintained by @andreyknvl.bsky.social and Alexander Popov.
See https://xairy.io/linkersec for mirrors.
TrendAI Zero Day Initiative @thezdi.bsky.social TrendAI Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
Black Hat @blackhatevents.bsky.social The world's premier Technical Cybersecurity Conference Series
jonpalmisc @jonpalmisc.bsky.social iOS exploits, (de)compilers, etc.
https://infosec.exchange/@jonpalmisc
https://twitter.com/jonpalmisc
https://jonpalmisc.com
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
sam4k @sam4k.com pwning kernels & blogging on os internals 🌱
PortSwigger Research @portswiggerres.bsky.social Web security research from the team at PortSwigger.
Web Security Academy @websecacademy.bsky.social Free web security training from PortSwigger.
Richard Johnson @richinseattle.bsky.social Fuzzing; Vulnerability Research;
Deep Learning; Reverse Engineering
Training & Publications @ http://fuzzing.io
Hacking the planet since 1995
Undercurrents.io BOFH
I'll stop the world and melt with you
Gynvael Coldwind @gynvael.bsky.social Security researcher/programmer ⁂ Managing director @ HexArcana ⁂ @DragonSectorCTF founder ⁂ he/him
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
Stephen Fewer @stephenfewer.bsky.social Senior Principal Security Researcher at @rapid7.com. Specializing in software vulnerabilities and exploitation. stephenfewer.github.io
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.
Orange Tsai @orange.tw This is 🍊
James Forshaw @tiraniddo.dev Security researcher in Google Project Zero. Author of Attacking Network Protocols. Posts are my own etc. 
Joe Grand @joegrand.bsky.social Hardware hacker, computer engineer, former L0pht member and juvenile delinquent, sometimes known as Kingpin. https://joegrand.com
Zion Leonahenahe Basque @mahal0z.bsky.social Native Hawaiian Hacker | Prev Co-captain of @Shellphish | PhD Student in Comp Sci @ASU l Decompiler Research | https://mahaloz.re
@hgarrereyn.bsky.social @hgarrereyn.bsky.social 
Jordan Wiens @psifertex.bsky.social Binary Ninja dev, Cuber, EUC rider.
Binary Ninja @binary.ninja https://binary.ninja/
Made with ❤️ by https://vector35.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
OffensiveCon @offensivecon.bsky.social OffensiveCon is a highly technical international security conference focused on offensive security only. Organized by Binary Gecko GmbH.
HushCon @hushcon.com We are HushCon.
June 5 and 6, 2026
New York, NY
We take your privacy and security seriously.
Jonathan Bar Or ("JBO") 🇮🇱🇺🇸 @yo-yo-yo-jbo.bsky.social Security research architect for Microsoft Defender for cross-platform.
Linux, Windows, Android, MacOS, iOS, ChromeOS, baremetal.
https://jonathanbaror.com
dmnk @dmnk.bsky.social 【ＤΞＣＯＭＰＩＬΞ ＮΣＶΞＲ】
Android Red Team @google
Fuzzing @aflplusplus.bsky.social
CTF @enoflag
(opinions my own)
Mark Dowd @mdowd.bsky.social Internet hacker
Jeff Geerling @jeffgeerling.com Father, author, developer, maker. Sometimes called "an inflammatory enigma". #stl #ansible #k8s #raspberrypi #mac #crohns www.jeffgeerling.com
Solder Party @solder.party We design easy to use products that help you develop your projects.
All our products are open source HW and SW!
Find our links at https://links.solder.party/
Alex Plaskett @alexplaskett.bsky.social Security Researcher | Pwn2Own 2018, 2021, 2022, 2024 | Posts about 0day, OS, mobile and embedded security.
Unnamed Reverse Engineering Podcast @unnamedre.com Reverse engineering fun
hextree.io @hextreeio.bsky.social 🌱 Grow your cybersecurity skills with concise and well-edited courses - in early access now! Created by @LiveOverflow and @stacksmashing.
https://hextree.io/
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
The C Programming Language @c-official.bsky.social Official account of the C Programming Language, invented by Immanuel Kant in 1799 at Bell Labs Königsberg
Social_Anthrax @anthrax.social She/her.
Local hacker gal and *OS enjoyer.
CTF with SIGINT and 0rganizers.
Former researcher @crowdstrike.com, former researcher somewhere fun.
All opinions are my own, you know how this goes.
🏳️⚧️
szymex73 @szy.bsky.social 🎶🎮 & CTFs | Capturing 🚩 with justCatTheFish
Jamie @jjjollyjim.bsky.social meow. she/her
4yn @4yn.bsky.social https://imp.ress.me
ctf & 音ゲー
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
taka @takarada.bsky.social https://riku.codes
elnardu @elnardu.com Tool Assisted Shitposting- P @playoff-rondo.bsky.social @playoff-rondo.bsky.social
- J JoshL @jtyliu.bsky.social You know I don't post right? | CTF w/ idek
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
Wokesama Bin Stalin @handle.invalid - H @h04x3d.bsky.social @h04x3d.bsky.social
- H toasty @handle.invalid
- C teddy @capturetheflag.bsky.social
cts @gf256.bsky.social Hacker and meme enjoyer
mixy1 @mixy1.bsky.social hacker, zeyu lover, torry kisser
depths of wikipedia @depthsofwikipedia.bsky.social hi i'm @annierau.bsky.social i love wikipedia! dm submissions if you want :-)
Randall Munroe @xkcd.com 
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/
str4d @str4d.xyz Cryptography, privacy, zero knowledge, Rust, Zcash dev, gaming, hardware hackery, art appreciation. He/him.
https://str4d.xyz
https://abyssdomain.expert/@str4d
age18f63qx4gk8x7p4lfuwwglqcan7snvp406q5vmk26g9fmpe9c799qqzzr3w
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app