David Kuszmar @davidkuszmar.com Black-box Adversarial AI Researcher. Discoverer of a whole mess of exploits.
Lead for AI Research at Gazzetta.xyz
Part of Organizing Group for tbdcon.ai
Spoke at HOPE_16 and IACS-6.
Newsletter: https://emergent-problems.ghost.io/
🇺🇦
Christina Lekati @christinalekati.bsky.social #SocialEngineering, #Psychology, #HUMINT & #OSINT intertwined for the sake of security.
OrangeCon @orangecon.nl The Dutch Cybersecurity Conference! Experience the Hackers Community in Amsterdam, on June 4th 2026!
HXZ.ONE @hxzone.bsky.social IT-Security Konferenz, Salzburg, Austria
Nerdy @silver-gamer.bsky.social #AI-Consultant (she) | #BusinessInformatics |
#KSODI #interaction #telemetry
—
#SilverGamer | #SciFiFan | #NatureFan | #OutdoorEnthus. | #AnimalLover | #CrossOverAuthor
😎we don’t go to #ravenholm.
Sure we don’t…😇
2600 - The Hacker Quarterly @2600.com Since 1984, 2600 Magazine has published the hacker perspective and documented the development of the hacking community. In addition to the magazine, we have a weekly radio show ("Off The Hook") and a biennial conference (Hackers On Planet Earth - HOPE).
Allan @allanfriedman.bsky.social SBOM Champion. Paranoid about supply chains of all kinds. Former full-service technocrat at CISA, NTIA. Lapsed{engineer, academic, author}. Now wandering the world doing acts of infosec-goodness, & occasionally getting paid for it. Poster of food pics.
Anonymous @youranoncentral.bsky.social #Anonymous: Actions Not Nouns. All that exists is interaction. #BindingChaos #3E https://yacnews.com/
Xavier Lavayssière 🥐 @xavierlava.bsky.social Digital Finance Expert 🔗 https://xvlv.io
Programmability, Financial Market Infrastructures, CBDC, Tokenization & RWA, Cross-Border Payments.
🏛️ Université Panthéon-Sorbonne
Bernhard Mueller @muellerberndt.bsky.social Uncertified ethical hacker
The Hacker's Choice (1995) @hackerschoice.bsky.social Security Research Group.
BSidesVienna.at @bsidesvienna.at BSides in Vienna… why yes please! ~~
bsidesvienna@infosec.exchange
Hao-Ping (Hank) Lee @hankhplee.bsky.social PhD student @CMU HCII | Prev: IBM Research, Microsoft Research, Brave
I develop tools that assist AI practitioners in identifying, reasoning about, and mitigating privacy risks during the development of AI products.
https://hankhplee.com/
Jurre van Bergen @jurrevanbergen.nl Exposing the baddies - Here's how to contact me securely: https://gist.github.com/DrWhax/61978d4e7df5291d4cf308f10dc20d5a- P Philipp Winter @phwinter.bsky.social
Natasha Bernal @natashabernal.bsky.social Senior business editor @WIRED. I like news
evacide @evacide.bsky.social Director of Cybersecurity @eff.org
Co-founder of @stopstalkerware.bsky.social
These opinions are my own, not my employers’
I did a TED talk once
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.
noyb – European Center for Digital Rights @noyb.eu About us 👉 http://noyb.eu
Become a member 👉 http://noyb.eu/support
#MakePrivacyReality #InvestInPrivacy
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/
404 Media @404media.co it's a website (and a podcast, and a newsletter) about humans and technology, made by four journalists you might already know. like and subscribe: 404media.co
Emanuel Maiberg @emanuelmaiberg.bsky.social Co-founder and journalist at 404media.co
I read every email
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.
Justin Elze @handle.invalid CTO @TrustedSec.com | Former Optiv/SecureWorks/Accuvant Labs/Redspin | Race cars
Hannah May (née Metzler) @hannahmetzler.bsky.social Clinical psychologist in training & scientist. Psychology, emotions, social media, misinformation & mental health. #EffectiveAltruism 🔸10% Pledge #5226 with @GivingWhatWeCan.bsky.social
Jana Lasser @janalasser.eurosky.social Professor for Data Analysis @UniGraz | Computational Social Science, Data Science, complex systems, computational modelling | #OpenScience, #coder | she/her
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
Martin Untersinger @untersin.gr Cyber / disinformation / privacy / Big Tech / scams @ Le Monde
Contact: familyname @lemonde.fr
Auteur d'"Espionner, mentir, détruire : comment le cyberespace est devenu un champ de bataille", éditions Grasset : cyber.untersin.gr
obscure - cDc 🅅 @obscure.bsky.social I am angry, I am ill, and I am as ugly as sin. My irritability keeps me alive and kicking. I know the meaning of life, it doesn’t help me a bit.
cDc Cultee
MITRE ATT&CK @attack.mitre.org MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Reposting ≠ endorsement.
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
Meredith Whittaker @meredithmeredith.bsky.social President of Signal, Chief Advisor to AI Now Institute 
Robin @digi.ninja Hacker, coder, climber, runner, triathlete.
Always learning.
Co-flounder of SteelCon
Corben Leo @hacking.bsky.social I hack stuff (legally). | co-founder boring.co
Twitter: https://twitter.com/hacker_
Ray [REDACTED] @rayredacted.com Past: Host of "Tribe of Hackers"; Assoc. Producer "Darknet Diaries."
Current: Cybersecurity researcher and executive. Also, father of the fastest climber who has ever lived. Seriously.
Warning: I talk about my son ALOT
“Ut scandis, alios subleva.”
Cyber Detective @cybdetective.bsky.social Every day I write about #osint (Open Source Intelligence) tools and techniques. Also little bit about forensics and other cybersecurity related themes
Katelyn 🅅 Medusfour @medus4.com Activist, Hacker cosplayer, Artist. Data economy abolitionist.
@cdc_pulpit Sinfluencer, Head of Humanity @ Veilid, designer of weird shirts at hack.xxx
I love gross terrifying things. Because I am one
hakluke @hakluke.com Dad, hacker, solo founder of haksec.com and hackercontent.com.
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
Tib3rius @tib3rius.bsky.social Web App (mostly) Hacker | Cybersecurity Educator | Content Creator | Ex-Brit | Links: http://linktr.ee/tib3rius (he/him) 🇺🇸 A mostly unserious person. @therealc3rul34n.bsky.social is bae 🥰
PortSwigger Research @portswiggerres.bsky.social Web security research from the team at PortSwigger.
PortSwigger @portswigger.net We are a leading provider of software and learning on web security. We make Burp Suite and the Web Security Academy.
Phillip Wylie @phillipwylie.bsky.social Offensive Security Professional | Phillip Wylie Show Podcast Host | The Pentester Blueprint coauthor | TribeOfHackers Red Team | https://linktr.ee/phillipwylie
Lesley Carhart @hacks4pancakes.com I am eminently qualified to speak from experience about a variety of dumpster fires.
ICS DFIR at Dragos, martial artist, marksman, humanist, level 14 Neutral Good rogue, USAF retired. I post *very serious* things about infosec. Thoughts my own. Enby. 🏳️🌈
Kevin Beaumont @doublepulsar.com cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
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
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
Tony Virelli @virelli.bsky.social Byte Stealer, locksport, i̵n̵f̵o̵s̵e̵c̵ hacking, phreaking, #Telephreak, @TelephreakBadge
, TOOOL emeritus board member
Proton @proton.me Choose a better internet where privacy is the default. Start protecting your personal information online with Proton Mail, Proton VPN, Proton Drive, Proton Pass, Proton Wallet, and Lumo: https://proton.me/
pingucat @pingucat.bsky.social I do artwork for hackers and throw parties.
Chris Wysopal @weld.bsky.social Gray haired gray hat. Co-founder Veracode. Former L0pht security researcher. Builds tools to find and fix vulnerabilities in code at scale.
Beau Woods @beauwoods.com hack all the cybers
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.
Marc Rogers @cjunky.bsky.social Ramblings of a Mad Englishman: Hacker @ BBC's Real Hustle & Mr Robot. Head of Sec @ DEF CON. Founder @ CTI-League, Ransomware Taskforce, w00w00, CDC NSF, (He/Him).
Also
Twitter @marcwrogers
Mastodon cj@chaos.social
Nate Warfield @n0x08.bsky.social Network Security | Hacker | WIRED25 2020 | CTI-League Founder | Security Researcher
Kur3us @kur3us.bsky.social hacker | infosec | red team | appsec | pentest | cloud | CTF | husband | father | usafveteran | oscp | layerone ctf | toorcon ctf | #badgelife
Andy Greenberg @agreenberg.bsky.social Writer for WIRED. Author of SANDWORM. Latest book, TRACERS IN THE DARK: The Global Hunt for the Crime Lords of Cryptocurrency, out now. agreenberg@wired.com. Andy.01 on Signal.
Lily Hay Newman @lhn.bsky.social Security reporter for WIRED Magazine. she/her/my man. Signal +1 (347) 722-1347
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app
Deviant Ollam ツ @deviantollam.bsky.social Philadelphian in Cascadia. Vociferous champion for Oxford commas, two spaces after a period, and ellipses. I break into buildings. 🔓
"Even if the world were ending tomorrow, I would still plant a tree." 🌲
(he/they)
Bellingcat @bellingcat.com Bellingcat is a global collective uncovering facts to hold power to account. Our work is independent. Our methods are public. Our community is global.
Want to support our charity? bellingcat.com/donate
Molly White @molly.wiki writes citationneeded.news • runs @web3isgoinggreat.com and @influence.citationneeded.news • tech researcher and cryptocurrency industry critic • software engineer • wikipedian
support my work: citationneeded.news/signup
links: mollywhite.net/linktree
💗💜💙
The Official Pulpit of CULT OF THE DEAD COW @cultdeadcow.com www.cultdeadcow.com
MG @mg.lol 
Electronic Frontier Foundation @eff.org We're the Electronic Frontier Foundation. We're a nonprofit that fights for your privacy and free speech online. Find all of EFF's social media accounts at eff.org/social.
Rob Fuller @mubix.com (he/him) Dad / Husband / Marine / Student / Teacher / @Hak5 / @NoVAHackers / @SiliconHBO / @NationalCCDC / @MARFORCYBER Auxiliary
Graham Helton (too much for zblock) @grahamhelton.bsky.social Hi
The Intercept @theintercept.com Fearless, adversarial journalism. Join our newsletter to get our best investigative reporting delivered to you: https://theintercept.com/newsletter/
Jayson E. Street💜🤗💜 @jaysonstreet.bsky.social Hacker - Helper - Human
JaysonEStreet.com
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
TProphet @tprophet.org Founder of @queercon @telechallenge @flyawardcat. Writer @2600, @tribeofhackers.
Every day, my life continues to amaze me.
我是同性恋# 🏳️🌈
Opinions are my own.