@epsilon-sec.com @epsilon-sec.com twitter : @epsilon_sec
web site : epsilon-sec.com
City of Alexandria, VA @alexandriavagov.bsky.social This is the official Bluesky page for the City of Alexandria government (alexandriava.gov)
Ryan Stortz @withzombies.bsky.social Memory Corruption, iOS, Swift, LLVM, CTF, old man stuff
NYC
Kagemusha @kagemusha1337.bsky.social Independent vulnerability researcher
Angelos T. Kalaitzidis @0xshad3.bsky.social RE / VR & Intense Coffee Consumption. He/Him. Opinions are my own. Curr: iOS . Past: Hypervisors.
Jack @xploit.dev Principal Exploit Dev @ Breakpoint Research https://breakpointresearch.com/
Derek Selander @lolgrep.bsky.social I use this place to store sticky notes
@brinly.bsky.social @brinly.bsky.social uh does anybody care about these bios
Best of r/cybersecurity @cybersecurity.page Automatically summarizes the hottest posts on r/cybersecurity so you can stay up-to-date wherever you are. Uses open source LLMs.
Operated by @tweedge.net
Bot code @ https://github.com/r-cybersecurity/best-of-bot
alkali @alkalinesec.bsky.social mobile security / symbolic execution . he / him
Anthropic @anthropic.com We're an Al safety and research company that builds reliable, interpretable, and steerable Al systems. Talk to our Al assistant Claude at Claude.ai.
Capital Weather @capitalweather.com D.C.'s Trusted Weather Team
http://www.capitalweather.com | info@capitalweather.com
RE//verse @re-verse.io https://re-verse.io/ reverse engineering conference
ssno @handle.invalid Game hacking & Reverse Engineering.
https://ssno.cc
ipsw @ipsw-tool.bsky.social iOS/macOS Research Swiss Army Knife - https://github.com/blacktop/ipsw
Corellium @corellium.bsky.social The R&D platform for the next generation of smart devices – iOS, Android, and Arm. Visit us at corellium.com to learn more. 
Mark Cuban @mcuban.bsky.social Entrepreneur
Costplusdrugs.com
Sarah Bagley (the one in Alexandria VA) @sarahbagley.bsky.social Vice Mayor of Alexandria, VA. Buster’s mom, reader, bike rider, and fan of all things pickled.
@objective-see.bsky.social @objective-see.bsky.social 
Supriya @supriyam.bsky.social Now Google Threat Intelligence & doing fun things at DistrictCon, fmrly GreyNoiseIO and RecordedFuture, SAISHopkins MASCI alumna | ♡s & rts are my own, my employer definitely doesn’t like Taylor Swift that much
Samuel Groß @saelo.bsky.social Working on Project Zero, Big Sleep, and V8 Security. Personal account.
Hearthstone @playhearthstone.bsky.social The Great Dark Beyond is now available in a galaxy near you! 🌌
#10YearsofHearthstone
https://hearthstone.blizzard.com/download
(unofficial)
Peter Goodman @cxx.dev C++ developer specializing in source and binary program analysis and transformation.
Meysam @r00tkitsmm.bsky.social Security Researcher.
Yarden Shafir @yardenshafir.bsky.social A circus artist with a visual studio license
Jesse D'Aguanno @x30n.bsky.social Hacker, Vuln Research, 2x winner DEF CON CTF, Founder & CEO Blackwing Intelligence, not a CISSP 
Csaba Fitzl @theevilbit.bsky.social macOS Security -- Trail running 🏃 -- Mountains ⛰ -- Tolkien fan
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)
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.
Summercon @summerc0n.bsky.social SummerCon 2026 is July 10-11. We are the official bsky account for SummerCon, America's Oldest Hacker Conference. Tip your bartender. https://summercon.org
Pwn20wnd @pwn20wnd.bsky.social Hacker @uncOverTeam. Jailbroke iOS 11.0-14.8.
Helping Apple make iOS more secure by uncOvering real security issues. #uncOver
@ih8sn0w.bsky.social @ih8sn0w.bsky.social 
matteyeux @matteyeux.bsky.social iOS fun
Sick.Codes @sickcodes.bsky.social Weaponizing source code 🧬 http://discord.gg/sickchat 🐘 http://sick.social/@sickcodes 🤖 http://t.me/sickcodeschat
OffensiveCon @offensivecon.bsky.social OffensiveCon is a highly technical international security conference focused on offensive security only. Organized by Binary Gecko GmbH.
Thijs Alkemade @xnyhps.nl Security Researcher.
guyru @guyru.bsky.social Vulnerability research, cryptography, FOSS, finance and random stuff.
Leading Cellebrite's iOS research.
@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
💥 leonjza @leonjza.bsky.social [ 'cto @sensepost.com', '@orangecyberdef', 'caffeine fueled', '(╯°□°)╯︵ ┻━┻', 'security guy', 'metalhead', 'i saw your password', 'KOOBo+KXleKAv+KXlSnjgaM=' ]
sysengineer @sysengineer.dev I do not give Facebook permission to print anything off my computer
radareorg @radareorg.bsky.social The official radare2 account in the Blueskyverse
@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.
Dave Aitel @daveaitel.bsky.social 
Luca Bongiorni @cyberantani.bsky.social 𝘛𝘦𝘭𝘤𝘰 🛰 - 𝘗𝘩𝘺𝘴𝘪𝘤𝘢𝘭 🔓- 𝘐𝘊𝘚 🏭 - 𝘐𝘰𝘛 🤖 Security {𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫 | 𝐒𝐩𝐞𝐚𝐤𝐞𝐫 | 𝐈𝐧𝐯𝐞𝐧𝐭𝐨𝐫 | 𝐈𝐧𝐬𝐭𝐫𝐮𝐜𝐭𝐨𝐫}
📺 https://youtube.com/@whid_ninja
🌐 whid.ninja
📖 whid.ninja/blog
Don't Ask What I Think about🍍➕🍕! I may get offensive 🇮🇹🤌😜
XPN @xpnsec.com Hacker for hire at @specterops.bsky.social
Blog: https://blog.xpnsec.com
@gergelykalman.bsky.social @gergelykalman.bsky.social - A Antonio Zekić @antoniozekic.bsky.social Interested in iOS/macOS internals/security...
Lukas Arnold @lukasarnld.bsky.social Researching iOS' Cellular Protocol Stack @ SEEMOO
Studying CS @tuda.bsky.social
🌍 https://lukasarnold.de
Sean @whatthefuzzvr.bsky.social iOS Security Researcher- T @taviso.bsky.social @taviso.bsky.social
Binary Ninja @binary.ninja https://binary.ninja/
Made with ❤️ by https://vector35.com/
plx @plzdonthaxme.bsky.social radical new twitter experience!
opa334 @opa334.bsky.social 
Niklas B @niklasb.rce.associates research @ dfsec.com
Quarkslab @quarkslab.bsky.social Reverse Your Future
https://quarkslab.com
Rebecca Slatkin Sloane @rebeccaslatkin.bsky.social iOS at Halide.
Great in humorous portrayal only. 
Noemi @noemi.bsky.social Latina | iOS Engineer @Square | former tweep | INFJ | she/her
iOS, skincare, and mental health 
Alex Plaskett @alexplaskett.bsky.social Security Researcher | Pwn2Own 2018, 2021, 2022, 2024 | Posts about 0day, OS, mobile and embedded security.
Xeno Kovah @xenokovah.bsky.social Interested in reverse engineering, firmware, bluetooth, trusted computing, and training. Founder of OpenSecurityTraining2 https://ost2.fyi
jiska @naehrdine.bsky.social ɿɘɘniϱnɘ ɘƨɿɘvɘɿ
🎦 youtube.com/@jiskac
📝 naehrdine.blogspot.com
🐥 twitter.com/naehrdine
🎓 hpi.de/classen
📱 reversing.training
DistrictCon @districtcon.bsky.social A new DC hacker conference: Bringing together builders, breakers, and fixers to do cool shit.
Feb. 6-7, 2027
districtcon.org
ϻг_ϻε @steven.srcincite.io Hermetic Initiate. Exploring conscience and the nature of reality. I also hack things.
gabsmashh @gabsmashh.bsky.social security engineer | 1L JD Candidate | NYU alum |
Advanced Fuzzing League @aflplusplus.bsky.social We want to make fuzzing better and better
Follow for updates on AFL++ & LibAFL
9to5Mac @9to5mac.com We break Apple news. Leading source for all things iPhone, Mac, iPad, Apple Watch, more
CoolStar @coolstar.bsky.social iOS app & Windows kernel developer. Ex-jailbreaker
from San Francisco Bay Area, CA
Chris Wade @cmw.bsky.social Connecting dots and untying knots. This is my personal account and my opinions are my own. CTO @ Corellium / Producer
Sam Collinson @rzn.bsky.social hex worker
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
cts @gf256.bsky.social Hacker and meme enjoyer
Rob Fuller @mubix.com (he/him) Dad / Husband / Marine / Student / Teacher / @Hak5 / @NoVAHackers / @SiliconHBO / @NationalCCDC / @MARFORCYBER Auxiliary
iOS Dev Weekly @iosdevweekly.com The best news and links for Swift and Apple platform developers. Every Friday since 2011.
EvilPenguin @evil-penguin.bsky.social Software, Security, AI Engineer; Marathon Runner; King of Penguins; Family & Memories; Meditation; Mindfulness; Pescatarian; Yoga; Views are my own;
@blacktop.bsky.social @blacktop.bsky.social https://github.com/blacktop
Saagar Jha @saagarjha.com 
Jay Freeman (saurik) @saurik.com I developed Cydia for jailbroken iOS devices and am now (theoretically) in charge of technology for Orchid; I am also a local politician in California.
x0rz @x0rz.bsky.social Cybersecurity & Threat Intelligence. Knowledge is power, France is bacon 🥓
Becky Hammer @beckyhammer.bsky.social Environmental lawyer/locally notorious person. Bad Bunny 101 adjunct professor. Alexandria, Virginia.
Subscribe to ALXtra: https://alxtra.ghost.io/
Justin Wilson @justindotnet.bsky.social Another social media account!!??
ALXnow @alxnow.bsky.social Reporting the latest local news and happenings around Alexandria, Virginia. Tips: news@alxnow.com • Website: ALXnow.com
Mark Trumpbour @mtrumpbour.bsky.social Persistently confused. He/him. It's Summercon somewhere. https://summercon.org 
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
Joe Grand @joegrand.bsky.social Hardware hacker, computer engineer, former L0pht member and juvenile delinquent, sometimes known as Kingpin. https://joegrand.com
Mark Dowd @mdowd.bsky.social Internet hacker
Ryan Mallon @ryiron.bsky.social 
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.
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 ✨🌈🦄
Rob Joyce @rgblights.bsky.social Cyber guy. Former NSA cybersecurity director and chief of TAO. Lover of memes. Warning - occasional outrageous Christmas light content.
Perri Adams @perrib.us Fmr DARPA Program Manager | Fmrly Organizing DEF CON CTF with Nautilus | RPISEC Alumna | Personal account, opinions my own, RT ≠ endorsement
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
b1ack0wl @b1ack0wl.com 0day Researcher @ ████████████ / Baker / 0wl
// I post random things on here
Dino A. Dai Zovi @ddz.bsky.social I drink amari and I know things. $ddz
LMDDGTFY: https://duckduckgo.com/?q=dino+dai+zovi
NYC/BK
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
Chris Krebs @thekrebscycle.bsky.social Aka @c_c_krebs over there 
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
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.
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
corgi @c0rg1.bsky.social I hack things
dmnk @dmnk.bsky.social 【ＤΞＣＯＭＰＩＬΞ ＮΣＶΞＲ】
Android Red Team @google
Fuzzing @aflplusplus.bsky.social
CTF @enoflag
(opinions my own)
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.