SLEUTHCON @sleuthcon.bsky.social Tickets for 2026 are now available!
https://www.sleuthcon.com
Kristi Yamaguccimane @wapplehouse.bsky.social America’s stepdad
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.
BSides San Diego @bsidessd.bsky.social 
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
Frans Oudendorp | MVP @oudendorp.nl Microsoft MVP and Freelance Security Consultant, #Microsoft Defender for Endpoint #MDE, Office #MDO, Microsoft 365 Defender #M365D #WPNinjasNL #TalkingSecurity
@egyp7 @egyp7.bsky.social I like juggling, Bash, chess puzzles, and good exploits. Worked on Metasploit for some years. 💙💜🩷
@egypt@mastodon.social
spencer @bsky.ethicalthreat.com 🛠️ Former Sysadmin, now Pentester | Microsoft MVP | Helping IT teams make their environment harder to attack
Pentesting -> SecurIT360
Podcast -> CyberThreatPOV
Active Directory Security Resources for IT Admins 👇
https://go.spenceralessi.com/adsecurity
Mario Hewardt @mariohewardt.com MSFT, author of Advanced Windows Debugging and Advanced .NET Debugging, Principal Software Engineer leading the Sysinternals team. Opinions are my own.
hotnops @hotnops.bsky.social Does stuff at @specterops
Cloud security research
SpecterOps @specterops.io Creators of BloodHound | Experts in Adversary Tradecraft | Leaders in Identity Attack Path Management
Dave Herrald @daveherrald.bsky.social security leader and storyteller | Googler | former Splunk SURGe and Boss of the SOC (BOTS) co-creator | GIAC GSE #79 | Tweets are my own
Alfie Champion @ajpc500.bsky.social Founder @ delivr.to | Threat Detection @ GitHub | Previously MWR
John Hammond @johnhammond.bsky.social Hacker. Friend. Cybersecurity Researcher at Huntress.
Andrew Case @attrc.bsky.social Volatility Core developer, Dir. of Research Volexity, LSU Cyber
Carlos Perez @thedarkoperator.bsky.social - Cybersecurity since 1998
- Information Security jack of all trades
- Hacker
https://www.darkoperator.com
Tyler @secshoggoth.bsky.social Incident Response, Forensics, Malware Analysis, Reverse Engineering, Cyber Security, RPG, Geek, Nerd, #DFIR
Opinions are my own and not those of my employer.
Thomas Bosboom @thomasbosboom.bsky.social Dutch (import #010) guy working in a London based team of a US company. Talks about Apple, Security, Tech.
Remember: outrage and panic are common content engagement tactics.
Garrett @unsignedsh0rt.bsky.social AdSim @ SpecterOps
Martin Sohn Christensen @martinsohn.dk Security Researcher @ SpecterOps
https://martinsohn.dk
Greg Foss @gregfoss.com Security Research Leader @ Datadog
Views are strictly my own
@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
Chris Truncer @christruncer.bsky.social Deputy Chief Red Team @ CISA && BJJ && Open Source Dev
evilmog @mog.evil.af X-Force, Shenanigans, Hashcat, Church of WiFi, Black Badges, MUDs, Dad Jokes, some Infosec.
Twitter: @evil_mog
Antonlovesdnb @antonlovesdnb.bsky.social Hunt & Response @ Huntress
Author of Constructing Defense
🇨🇦
RastaMouse @rastamouse.me make pic +relax
Rohan Vazarkar @cptjesus.bsky.social Former Pentester
Engineer at SpecterOps
Author of BloodHound
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
John Hultquist @hultquist.bsky.social Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
Phil Hagen @philhagen.com DFIR, security, networking, all things tech, OneWheel, Radinn, travel, LEGO, and probably a whole lot more in small and sporadic bits. (Squirrel!)
Fierce and unapologetic ally. He/him/his.
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
Ken @stoner.dad 
Red Siege @redsiege.com Penetration Testing, Purple Team, Red Team & Adversary Emulation.
Let our Offense, Prepare your Defense. https://redsiege.com
#weareoffensive
TrustedSec @trustedsec.com End-to-end Cybersecurity consulting team leading the industry, supporting organizations, and giving back. #HackThePlanet
https://trustedsec.com/
BertJanCyber @bertjancyber.bsky.social CSIRT | http://kqlquery.com | Microsoft Security MVP | Blue & Purple Team | SOC | SIEM | Threat Hunting | Detection Engineering | #KQL |
The DFIR Report @thedfirreport.bsky.social Real Intrusions by Real Attackers, the Truth Behind the Intrusion.
https://thedfirreport.com
Jonny Johnson @jonny-johnson.bsky.social Principal Windows Security Researcher @HuntressLabs | Windows Internals & Telemetry Research
Hope Walker @1cemoon.bsky.social Senior Security Researcher at SpecterOps. All opinions are my own.
Wietze @wietzebeukema.nl Threat Detection & Response. Interested in cyber security, tech and politics. Views are my own, unless retweeted.
Evan McBroom @evanmcbroom.bsky.social @SpecterOps
Jorge Orchilles @jorgeorchilles.bsky.social SANS Principal Instructor & Author #SEC565 | #RedTeam | #PurpleTeam | #PenTest | #C2Matrix Creator | ATT&CK & Atomic Red Team Contributor | Published Author
Haag @mhaggis.bsky.social Just a person hacking away.
Jonas Bülow Knudsen @jonas-bk.bsky.social Manager, Research @ SpecterOps
https://github.com/JonasBK/JonasBK/blob/main/README.md
@securityaura.bsky.social @securityaura.bsky.social GCIH, GCFE | DFIR, Threat Hunting, Detection Engineering | @CuratedIntel DFIR Member
SecurityAura.com
http://infosec.exchange/@SecurityAura
Shelley @shelleymo.bsky.social Community + Content @ Red Canary
Jelle Niemantsverdriet @jelle.niemantsverdriet.nl Cybersecurity leader challenging traditional approaches. Veteran incident responder. Advocate for human-centered security that builds trust, not barriers. Speaker on resilient design.
Also likes rowing, running, reading. 🇳🇱
Raphael Mudge @raphaelmudge.bsky.social Riding around in the breeze. Hacker. USAF Veteran.
Olaf Hartong @olafhartong.nl Security researcher with a camera | @FalconForce.nl | Microsoft MVP | Snow man role model | https://youtube.com/@olafhartong
Liv Agar @livagar.bsky.social It’s Liv agar
Ean Meyer - Disassociating for Survival @eanmeyer.bsky.social Doing my best to make security and the world a bit brighter.
Chris Nickerson @indi303.bsky.social Red Teamer, Business Owner, Hacker, CEO, Investor, Cybersecurity, dog dad, Lares, Breachquest, Liability, B-sides co-founder, @TEDalumni , kinda canadian, #303
Cannibal 🦙 @elcannibal.bsky.social @cannibal on Twitter
Ex medical infosec. Red team. Threat hunter. Patient safety. Locksport. Metal work. I break things. #MakeShitMonday 3Dprinting. less cyber more security. Maker, but mostly breaker. 
R @arcanenibble.bsky.social Full-stack hacker. Chuuni rights! Funemployed (prev. infosec).
they/them
EN/中文/廣東話 (ABC)/learning DE
FPrime @fprime.gay He/him. n00b hacker, red team operator @ G-Spot, gaymer 🏳️🌈, addicted to learning. Views are my own (obviously!). Blog (eventually): https://blog.fagatron.world
Alethe @alethe.bsky.social ‘Uh-Lee-th’ | Bishop Fox 🦊 Red Team | DEF CON Goon & Black Badge Hall of Fame | DEF CON Social Engineering CTF Winner 2019 | Physical Pentester | IVR Pentester | IR Tabletop King 👑
Safa 🇿🇦 in NorCal 🇺🇸 - Fish 🐠 Nerd - Jeep Girl
Deth Veggie @dethveggie.bsky.social Herr Doktor Professor Deth Vegetable -- CULT OF THE DEAD COW -- .ooM
Hacker / Archaeologist / Gadabout / Professional Something-or-Other. Anti-fascist and Pro-science. As the old axiom says, reality has a liberal bias.
Nazis need to be punched.
Jun34u @jun34u.bsky.social Alaskan in Los Angeles. Chaotic idealist.
Hacker, Writer, and Game Theorist
cDc Cultist
Forever Script Kiddie
She/They 🏳️🌈🏴☠️
Rowan @novafacing.bsky.social fuzzing enjoyer
@novafacing@haunted.computer
rekdt @rekdt.com // sr cybersec leader megacorp usa
// ex big tech, else
// unethical hacker
// malware de(v)generate
// take bsky sincerely at your own risk
// https://linktr.ee/rekdt
@GuardianCosmos - Christian N. @guardiancosmos.bsky.social Japan loving cybersecurity nerd Pentesting | Forensics | Incident Response | SANS Instructor | Purple Teaming | @guardiancosmos@infosec.exchange/@GuardianCosmos in the old place | Views AMO
Dylan Nakahodo @dylannakahodo.bsky.social RE/Vuln Research/Exploit Dev but currently Web | Security Engineer | He/Him
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
b1ack0wl @b1ack0wl.com 0day Researcher @ ████████████ / Baker / 0wl
// I post random things on here
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
Kelsey Hightower @kelseyhightower.com Minimalist
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/
Peter Goodman @cxx.dev C++ developer specializing in source and binary program analysis and transformation.
David (DWIZZZLE) Weston @dwizzzle.bsky.social Corporate Vice President, OS Security and Enterprise @Microsoft
cts @gf256.bsky.social Hacker and meme enjoyer
alden @re.wtf malware enjoyer • macOS security
https://alden.io
moloch @littlejoetables.bsky.social Offsec at OpenAI
Former Bishop Fox Red Team
biazo @vmcsptr.bsky.social Hyper-V Enjoyer
BrianWGray @brianwgray.bsky.social Security Geek @CMU all thoughts and opinions are my own except for when I copy paste them from the security echo chamber.
#InfoSec #adventuresports?
Matthew Riley @matt.dev security eng manager at Google • he/him
⛧Zod Magus⛧ @zodmagus.org Father, hacker, Ninja, fitness freak, socialist, ³³⁰¹, ⛧tst, Wepwawet, afrocyberist, bka
VHSky
Horrorsky
HorrorFam
HorrorNoire
z0ds3c
Blacksky
Black Phillip
HackerSky
Taken
https://z0ds3c.substack.com/
https://infosec.exchange/@zodmagus
Sam Davison @sam-davison.bsky.social Security, Privacy, Trust & Safety, and Fraud Engineering at your favorite and least favorite consumer tech companies
Uncle Joe @sydseter.com Co-leader OWASP Cornucopia. If you like what we do for open source, visit our code repository https://github.com/OWASP/cornucopia and give us a star ⭐
🌈 «Difference is of the essence of humanity» 🦄 – John Hume
#appsec #owasp #cornucopia #threatmodeling
Stephen Fewer @stephenfewer.bsky.social Senior Principal Security Researcher at @rapid7.com. Specializing in software vulnerabilities and exploitation. stephenfewer.github.io
Carlos @carlosperate.bsky.social ⚡️ Love everything embedded software/hardware.
🧑🏫 Passionate about STEM & EdTech.
👨💻 Embedded Software @ #Microbit Educational Foundation (microbit.org).
🐍 Oxford Python user group co-organiser.
🤔 Views my own.
Jaime Lightfoot @jaimelightfoot.bsky.social EE, dev, hacker
What I want doesn't exist (yet), so I will create it ⚡️
jaimelightfoot.com / lightfootlabs.io
crudd @crudd.re Reverse Engineering and Malware Analysis
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.
st0_ic @d0c.bsky.social Infosec professional, former healthcare professional. Professionally unprofessional DFIR DJ. he/him
https://www.twitter.com/st0_ic
Bart Thijssen @bartthijssen.bsky.social Master of (Keeping/Stealing) your Secrets | Security Advisor & Intel Analyst | Civil Servant @ BE | Klopjacht-speurder | IT Eng. + Pol. Sci. | Posts my own
Joe Rozner @jrozner.bsky.social Startups, hacking, snowboarding. I build shit in Los Angeles. Writing about my journey to scalable vuln discovery @ https://goingbeyondgrep.com
Tanya Janca | SheHacksPurple @shehackspurple.bsky.social Secure Code Trainer - Best-selling author of Alice and Bob Learn Secure Coding & Alice and Bob Learn Application Security. #AppSec she/her
https://shehackspurple.ca 🌻
Cristin Flynn Goodwin @cristin.bsky.social All things cybersecurity, incident response, threat Intel, AI, and law. Founded @AdvancedCyberLaw.com after forever @MSFT. Host of @AdvancingCyber.com Podcast on Apple Podcast and Spotify. Mom to humans, dog, and cat. Seeks big mountains and lakes.
Andrey Konovalov @andreyknvl.bsky.social Security engineer at http://xairy.io. Focusing on the Linux kernel. Maintaining @linkersec.bsky.social. Trainings at http://xairy.io/trainings.
Andy Robbins @andyrobbins.bsky.social aka wald0
ThinkstCanary @thinkstcanary.canary.tools Know. When it matters.
https://canary.tools
Mike Wiacek @mikewiacek.bsky.social 🚀 CEO Stairwell | Built to outsmart bad guys
💻 Ex-Google | Co-founder of Chronicle Security
🏂 Snowboard fanatic | Burton loyalist
👨👧👦 Dad | Startup life meets kid vibes
🎶 Epic music lover—startup grind meets “The Greatest Show” energy
DMs open
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
Cyber Statecraft Initiative @cyberstatecraft.bsky.social The Cyber Statecraft Initiative works at the nexus of geopolitics and cybersecurity to craft strategies to help shape the conduct of statecraft and to better inform and secure users of technology.
The Onion @theonion.com America’s Finest News Source. A @globaltetrahedron.bsky.social subsidiary.
Get the paper delivered to your door: membership.theonion.com
Join The Onion Newsletter: https://theonion.com/newsletters/
Ben Collins @bencollins.bsky.social Senior Vice President of Woke 5
The Security Ledger @securityledger.bsky.social Founded in 2012, the Security Ledger is an independent cyber security news website that explores the intersection of cyber security with the Internet of Things. Voted a Top 100 Information Security Blog, we offer original reporting, podcasts and opinion. 
Public Knowledge @publicknowledge.bsky.social Public Knowledge promotes an open internet, accessible communications tools, and balanced copyright laws. Reposts do not necessarily indicate endorsement.
Sign up for our newsletter here: publicknowledge.org/subscribe
iFixit @ifixit.com 🧑🔧 Free repair guides for every thing, written by everyone
🛠️ Fighting for your right to repair your stuff
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