KL3FT3Z @toxy4ny.bsky.social Red Teamer & Offensive AI Researcher. Creator of redteam-ai-benchmark and other open-source redteam tools. Writing about LLM security and safety, system’s hardening and adversarial AI.
Gitlab.com- https://gitlab.com/toxy4ny
Dev.to - https://dev.to/toxy4ny
EUVD Bot @euvd-bot.bsky.social 🛡️ Unofficial bot posting new entries from the EU Vulnerability Database (EUVD).
🔔 Stay updated on the latest security vulnerabilities.
🤖 Automated • Not affiliated with ENISA or the EU
Maintainer: https://bsky.app/profile/moltenbit.bsky.social
Audra Streetman @audrastreetman.bsky.social Threat Intel @ Target
Undercode Testing @undercode.bsky.social 🦑 The world’s first platform dedicated to comprehensive analysis of every New hacking technique.
Hackers Post Monitored by Undercode
Latest in Bug Bounty Tactics | Cybersecurity Tools Updates | AI & Courses
Adrien Linuxtricks @adriend.linuxtricks.fr Sysadmin et Formateur LINUX
Contributeur : Fedora Project, Alma Linux
Youtube t.ly/FT8da
Partenaire Twitch t.ly/TwPxm et Twitch DJ t.ly/NFjz1
C'est ici qu'on lit les copier/coller de Twitter ?
Ici depuis le temps des codes d'invitation !
cybercriminalite.bsky.social @cybercriminalite.bsky.social 
OpenAlternative @openalternative.co Discover open source alternatives to popular software. Curated by @kulpinski.dev
Join 8k+ subscribers → openalternative.co
Héctor López @oihec.bsky.social hacker mexicano de OIHEC
Eric Bothorel @ericbothorel.fr Député Renaissance Circo Trégor-Goëlo, 2205 un concentré de Bretagne Auditeur IHEDN SNC4. Sponsor de la Tech. https://linktr.ee/ericbothorel
Jérôme Notin @jeromenotin.bsky.social DG Cybermalveillance.gouv.fr Pilote de 17cyber.gouv.fr
Cybermalveillance.gouv.fr @cybermalveillance.gouv.fr Compte officiel du dispositif national d'assistance aux victimes de cybermalveillance et de sensibilisation aux risques numériques - GIP ACYMA 🇫🇷 www.cybermalveillance.gouv.fr 
CERT-FR @cert-fr.bsky.social Centre gouvernemental et national de veille, d'alerte et de réponse aux attaques informatiques.
Pour toute question : cert-fr@ssi.gouv.fr ou par téléphone au 3218
ANSSI @anssi-fr.bsky.social Compte officiel de l'Agence nationale de la sécurité des systèmes d'information (ANSSI) | Retrouvez les alertes de #cybersécurité sur le compte @cert-fr.bsky.social
Seboss666 @seboss666.info Sysadmin dans l'âme. Procrastineur de l'extrême. Heureux utilisateur de Manjaro Linux.
Le LinkFree qu'il est tout beau avec tous les liens: https://seboss666.info/
Camille Roux @camilleroux.com Développeur • Directeur général et fondateur de @humancoders.com • Art: @art.camilleroux.com • il/lui he/him
Retyc @retyc.com End-to-end encrypted file sharing service. https://retyc.com
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)
Threema @threema.ch Seriously secure messaging. https://threema.com
If you have questions, please contact us via https://threema.id/%2ASUPPORT or support@threema.ch.
Impressum: https://threema.com/impressum
Cécile Arènes @carenes.bsky.social Données de la recherche et humanités numériques en bibliothèque universitaire. – Science ouverte et ESR. – Propension à une ligne éditoriale foutraque.
Tor Project @torproject.org We're a nonprofit defending your privacy and freedom online. Download Tor Browser for protection against surveillance and censorship. http://t.me/TorProject
Dark Web Informer @darkwebinformer.com Providing Cyber Threat Intelligence from the Dark Web & Clearnet: Breaches, Ransomware, Darknet Markets, Threat Alerts, Crypto & more. https://darkwebinformer.com/socials // https://x.com/DarkWebInformer // THIS ACCOUNT IS IN PARK. PLEASE FOLLOW ELSEWHERE.
Troy Hunt @troyhunt.com Founder & CEO of @haveibeenpwned.com, the most trusted name in data breach intelligence. Speaker, blogger, Microsoft Regional Director. Gold Coast, Australia.
@r0tware.bsky.social @r0tware.bsky.social Degenerate Artist and Professional Computer Nerd.
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
Rust Language @rust-lang.org A programming language empowering everyone to build reliable and efficient software.
Website: https://rust-lang.org/
Blog: https://blog.rust-lang.org/
Mastodon: https://social.rust-lang.org/@rust
Fedora Project @fedora.fosstodon.org.ap.brid.gy This is the official feed for the Fedora Project, a global free & open source software community sponsored by Red Hat.
We make Fedora Linux - an innovative free & open […]
🌉 bridged from ⁂ https://fosstodon.org/@fedora, follow @ap.brid.gy to interact
Parrot Security @parrotsec.bsky.social Official Bluesky account for Parrot Security OS.
PortSwigger @portswigger.net We are a leading provider of software and learning on web security. We make Burp Suite and the Web Security Academy.
Barry Murrell @barry.wlkthru.io Founder of wlkthru.io
@wlkthru.io we help Businesses manage their Cyber Security risks.
🌐Automated Pentests
👾Gamified Learning
🤖Sims - Phishing Vishing Smishing
🏆Company Leaderboards
🧑🤝🧑Teams
Plus more...
🔒Keeping your Team & Customers safe
Cyber Security Awareness Training @wlkthru.io wlkthru.io provides businesses and their employees, with the skills they need to safeguard their digital assets!
Our professionally structured, gamified training, allows you to compete on our leaderboard earn badges & certificates win prizes & more
Compass Security @compass-security.com Penetration Testing, Red Teaming, Incident Response, Managed Detection, Digital Forensics, Security Training, Managed Bug Bounty, Cyber Training Range
Soatok @soatok.bsky.social 30-something gay furry with an interest in cryptography and software security.
Mastodon: https://furry.engineer/@soatok
Blog: https://soatok.blog
🎨 https://mrjimmydafloof.bsky.social
Fight for the Future @fightforthefuture.org 👊 Battling techno-fascism with our Internet-savvy blend of attention-grabbing activism and mass mobilization.
https://www.fightforthefuture.org/2026
Randy @irishdeath.bsky.social Dad above all other jobs
Detection Engineering and Threat Hunting
Email and Empathy
d4rkm4tter @darkmatter.bsky.social Hacker by day... and night
#WiFiCactus | #WiFiKraken
apexstorage.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
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
UK_Daniel_Card @mrr3b00t.bsky.social 
cybrz @cybrz.bsky.social Master of Disaster @compass-security.com 🔥 for all sorts crises, scada, chunk hacking, electronics, cryptography and cyber all the things.
Socura @socura.co.uk Managed Detection and Response provider bringing the power of calm #MDR #SOC #DFIR
🌐 socura.co.uk
📍 Cardiff, Wales
It was like this when I found it @ifounditthisway.bsky.social Seriously, it was already like that.
#PvJCTF Red Cell
Opinions are mine and not necessarily those of my employer, clients, vendors, armorer, shaman...
Vertigosint @vertigosint.bsky.social Threat Intelligence Leader at a software company
Blog: https://threatchronicles.com
Patrick Howell O’Neill @patrickhowelloneill.com Journalist at Bloomberg News in DC. Signal: @howelloneill.01, email: patoneill1@bloomberg.net https://www.bloomberg.com/authors/AXb8dLPHBFc/patrick-howell-oneill
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
SwiftOnSecurity @swiftonsecurity.com computer security person. former helpdesk
Meredith Whittaker @meredithmeredith.bsky.social President of Signal, Chief Advisor to AI Now Institute 
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/
Katie Moussouris (she/her/she-hulk/she-ra)🌻 @k8em0.bsky.social Founder & CEO LutaSecurity @payequitynow MIT&Harvard visiting scholar, @MasonNatSec fellow, 1/2 Chamoru, 1/2 Greek all-American hacker
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.
Joseph Menn @joemenn.bsky.social Washington Post alum covering hacking, disinformation and what’s left of privacy. Author of books on the Cult of the Dead Cow, organized criminal hacking, and Napster. Pulitzer co-finalist 2024. Signal joemenn.01
Dmitri Alperovitch @dmitri.silverado.org Geopolitics, Russia, China, Cyber
Chairman @silverado.org
Author of WorldOnTheBrink.com
Host GeopoliticsDecanted.com podcast
Founder Alperovitch Institute for Cybersecurity Studies at Johns Hopkins SAIS
Co-Founder CrowdStrike
@DAlperovitch elsewhere
Lorenzo Franceschi-Bicchierai @lorenzofb.bsky.social Real-time historian of the late cyber capitalist era @TechCrunch, writing about the intersection of hackers, human rights, and spies.
Also writing a book about Hacking Team and the history of government spyware.
☎️ Signal: +1 917 257 1382
Kevin Beaumont @doublepulsar.com cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
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
Alex Stamos @stamos.org CPO/CSO of Corridor.dev, teaching at Stanford.
Matthew Green @matthewdgreen.bsky.social I teach cryptography at Johns Hopkins. https://blog.cryptographyengineering.com
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. 🏳️🌈
Dustin Volz @dustinvolz.bsky.social Washington correspondent for The New York Times focused on cyber conflict, digital espionage and intelligence. Prior stops at WSJ, Reuters, National Journal. https://www.nytimes.com/by/dustin-volz
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
John Hultquist @hultquist.bsky.social Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.
Rob Joyce @rgblights.bsky.social Cyber guy. Former NSA cybersecurity director and chief of TAO. Lover of memes. Warning - occasional outrageous Christmas light content.
Zack Whittaker @zackwhittaker.com Security editor, TechCrunch
Signal: zackwhittaker.1337
My stories: techcrunch.com/author/zack-whittaker
My newsletter/blog: this.weekinsecurity.com
Eric Geller @ericjgeller.com Senior reporter at @CybersecurityDive.bsky.social covering all things digital security. I also co-host @hothtakes.bsky.social. | Send me tips: https://ericjgeller.com/contact.html
Ellen Nakashima @ellenwapo.bsky.social Intelligence and national security reporter at The Washington Post. Reach me securely on Signal at Ellen.626.
Patrick Gray @patrick.risky.biz https://risky.biz/
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.
Chris Bing @chrisbing.bsky.social Cyber, natsec and foreign affairs. Formers with ProPublica, Reuters and CyberScoop
https://bing-chris.medium.com/how-to-contact-me-d2fd4bd3ed7b
Jason Kikta @kikta.net // Making it up as I go
// JHU SAIS @alperovitch.institute adjunct
// @istorg.bsky.social adjunct sr tech advisor
// Former USCYBERCOM/CNMF
// Retired US Marine Corps
// Personal views and invective
Bill Marczak @billmarczak.org senior researcher at @citizenlab.ca
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
Joe Slowik @pylos.co Threat Intel / CTI / OT / ICS / Critical Infra stuff along with other things. I genuinely care, and wish others did too.
Website: pylos.co
Training/Consulting: paralus.co
Horkos @wylienewmark.bsky.social waking up everyday in a full sprint. cyber(punk) & counterintelligence. bloody inertia interspersed with bouts of bloody frenzy. i see kanly today in everything.
#FUZZYSNUGGLYDUCK
opinions are my own.
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 ✨🌈🦄
gab 🇺🇦🇵🇸 @gabagool.ing fka @gabbyroncone on twitter. mission tech lead for RU & Eastern European APT ops @Google. views expressed here are mine, not my employer’s. she/her.
Tom Uren @tom.risky.biz Author of the Seriously Risky Business cyber security newsletter
Greg Otto @gregotto.bsky.social @gregotto from twitter, now on bluesky. Editor-in-Chief at CyberScoop. Host of Safe Mode. Better with words than I am with code.
MITRE ATT&CK @attack.mitre.org MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Reposting ≠ endorsement.
Selena Larson @selenalarson.bsky.social loves dogs, sports, memes. she/her. podcaster. "bluesky's humblest resident nailfluencer 💅" - Jerry
my heart is in the west 🌵🌊 views mine.
evacide @evacide.bsky.social Director of Cybersecurity @eff.org
Co-founder of @stopstalkerware.bsky.social
These opinions are my own, not my employer's
I did a TED talk once
Max Smeets @maxwsmeets.bsky.social Author of No Shortcuts & Ransom War
Co-director Virtual Routes (https://virtual-routes.org/), previously ECCRI
Managing Editor Binding Hook (https://bindinghook.com)
Senior Researcher, ETH Zurich
Ian Coldwater 🧊🚫 @lookitup.baby Kubernetes SIG Security Co-Chair, goose in the mainframe. Minneapolis. They/them. Stay punk 🏴
MSP feed info: https://bsky.app/profile/amityf.bsky.social/post/3mrv36uo4pc2a
Allan “Ransomware Sommelier” Liska @ransomwaresommelier.com Recorded Future - Ransomware Researcher
Owner @greenarcher.io - Yours Truly, Johnny Dollar | The Press Guardian | The Clock | The Green Archer
Weird mix of security, comics, photography and wine!
www.greenarcher.io
Lea Kissner @leak.bsky.social Security, privacy, respect. Was the Twitter CISO until it was terrible. Now LinkedIn CISO. they/them
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.
Whitney Merrill @wbm312.bsky.social I nudge people to care about privacy and security. CPO/DPO. Privacy/infosec lawyer. Hacker. Fighting for privacy, digital civil liberties & the users. Ex @EA @FTC |my views are my own. I used to post on Twitter at @wbm312.
Danny Moore @moore.bsky.social Cyber-warfare | PhD from KCL | Author of 'Offensive Cyber Operations' | Security @ Meta 
Alec Muffett @alecmuffett.bsky.social everybody deserves good security.
https://alecmuffett.com/about
Dan Goodin @dangoodin.bsky.social Cybersecurity Reporter, Ars Technica: https://arstechnica.com/author/dan-goodin/ Hungry for tips. Text me on Signal: DanArs.82. "The world isn’t run by weapons anymore, or energy, or money. It’s run by little 1s and 0s, little bits of data."
Lily Hay Newman @lhn.bsky.social Security reporter for WIRED Magazine. she/her/my man. Signal +1 (347) 722-1347
Glenn @ntkramer.bsky.social Elder Millennial | 💼 Cybersecurity | I ask 'why?' a lot | Pro Oxford Comma | Fix it! | He/Him | #BLM | Views are my own.
The Shadowserver Foundation @shadowserver.bsky.social Our mission is to make the Internet more secure by bringing to light vulnerabilities, malicious activity and emerging threats. Join our Alliance!
https://shadowserver.org/partner
Taggart @taggart-tech.com @mttaggart@infosec.exchange. Displaced Philly boy. Executive Director of @ifin-intel.org. Threat hunter. Educator. Dad. General in the AI Resistance.
taggartinstitute.org
wtfbins.wtf
linktr.ee/mttaggart
Lou @loustella.com Threat Researcher
NJ->TX->PA
Contains Multitudes.
Bob Lord @boblord.bsky.social Cautiously pessimistic, esp. about cyber things.
The owls are not what they seem. 🗻🗻🦉🌲🪵 🍒🥧☕️🍩 🕵🏼♀️ 👍🏻
Also: 🔐🔑🔒
And of course: hacklore.org
Other account: @hacklore.bsky.social