NCSC UK @ncsc.gov.uk We are the National Cyber Security Centre – part of the UK’s intelligence & cyber agency GCHQ. We help to make the UK the safest place to live and work online.
Brian Krebs (parody) @briankrebs.bsky.social Did you think your little ass could hide from me? Don’t worry this username will be forwarded to my federal buddies. I smoke all sim swappers and put them in some packs! 💯💯💯
parody
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
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
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.
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
Matthew Green @matthewdgreen.bsky.social I teach cryptography at Johns Hopkins. https://blog.cryptographyengineering.com
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
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
Jeremy Kirk @jkirk.bsky.social Okta Threat Intelligence. Personal account. Interests: Cyber threat intelligence, OSINT, data breaches, AI. Formerly intel analysis @ Intel 471. jeremykirk.com
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
Datadog Security Labs @securitylabs.datadoghq.com Read our Security Labs blog: https://securitylabs.datadoghq.com
Subscribe to our monthly newsletter: https://securitylabs.datadoghq.com/newsletters/
Adriana Porter Felt @apf.bsky.social I like writing silly skeets, but that doesn't pay so I also make Google Chrome. mamá, Eng Director, volunteer at Second Harvest. 🇺🇲🇨🇷
Twitter: @__apf__
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 🥰
OWASP® Foundation @owasp.org We improve the security of apps with community-led open source projects, 260 local chapters, and tens of thousands of members worldwide. Famous for OWASP Top 10
Mrs. Y @mrsyiswhy.bsky.social Security Bene Gesserit and professional nerd stalker. Likes long walks in hubsites and searching for spice. Views: definitely those of my puppet overlords. Location: kernel space https://linktr.ee/chubirka
Matt Blaze @mattblaze.org Scientist, safecracker, etc. McDevitt Professor of Computer Science and Law at Georgetown. So-called expert on election security and a few other things. Slow photographer. RF nerd. Occasionally blogs at https://mattblaze.org/blog
Ric @ricderby.com Principal security researcher - Orange Cyberdefense
Honorary researcher - @imperialcollegeldn.bsky.social
OT, CNI, novel attack techniques, quantitative risk
motorcycle & guitar obsessive | cat hoarder
Graham Cluley @grahamcluley.com Award-winning #cybersecurity keynote speaker, writer, podcaster | Host of multi-award-winning @smashingsecurity.com podcast.
❤️ #DoctorWho, #Beatles, #Chess
He/him
🌐 https://grahamcluley.com
🎙️ https://www.smashingsecurity.com
Sean Gallagher @thepacketrat.net Birb stalker. Cat tree. Cyber Threat Researcher. Recovering cyber and natsec reporter. Meme war and US Navy veteran.
@thepacketrat everywhere since 1994. These posts are not my employers’. https://falling-anvil.com
Jessica Lyons @jessicalyons.bsky.social Cybersecurity editor @theregister.com Contact me with tips: jessica.lyons@theregister.com or jess.825 on Signal
Mama bear, book worm, outdoor lover, coffee and wine snob. PNW after decades in Santa Cruz but Blazers fan always.
Tim Starks @timstarks.bsky.social Senior reporter, CyberScoop, covering spyware, cyber policy and more. Russia-sanctioned. Former Washington Post, POLITICO, CQ Roll Call. @timstarks.02 on Signal. tim.starks@cyberscoop.com. Mastodon timstarks@infosec.exchange, X timstarks, Threads tstarks2.
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.
MITRE ATT&CK @attack.mitre.org MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Reposting ≠ endorsement.
INTERPOL @interpol.int Connecting police & catching criminals in 196 countries for more than a century. 🕵️
Follow our success stories here. 👮♂️🚔👮♀️
✍️ Report crimes to your local police.
Kenn White @kennwhite.bsky.social cryptography • neuro • cloud • biscuits
ORD-DCA-NYC-BCN ✈️
kennwhite@mastodon.social
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/
Andrew Case @attrc.bsky.social Volatility Core developer, Dir. of Research Volexity, LSU Cyber
Hash Miser ✊🇺🇦 @hash-miser.bsky.social Internet janitor, #CERT #BlueTeam and Whisk(e)y enthusiast "Everything you do is useless ! Enjoy 🍻" hash_miser@infosec.exchange
Mathieu Feuillet @mathieufeuillet.bsky.social Former Head of CERT-FR. Former Head of Operations at ANSSI
François Deruty @derutyf.bsky.social threat intelligence at https://www.sekoia.io / former head of cert-fr
https://blog.sekoia.io
Rob Joyce @rgblights.bsky.social Cyber guy. Former NSA cybersecurity director and chief of TAO. Lover of memes. Warning - occasional outrageous Christmas light content.
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
SwiftOnSecurity @swiftonsecurity.com computer security person. former helpdesk
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.
John Hultquist @hultquist.bsky.social Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.
OSINT Techniques @osinttechniques.bsky.social https://www.forensicosint.com/
Intel 471 @intel471.bsky.social Intel 471 specializes in delivering intelligence related to threat actors, threat hunting, financial cybercrime, ransomware, vulnerabilities, malware and underground marketplaces. Listen to our podcast, Cybercrime Exposed, on Spotify and Apple. #infosec
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
Kevin Beaumont @doublepulsar.com cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.
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. 🏳️🌈
OSINT-FR @osintfr.bsky.social Association OSINT-FR | https://OSINTFR.COM/ | Communauté dédiée à l'Open Source Intelligence. Événements, apprentissage et collaborations autour des pratiques liées à l'OSINT.
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
Martin Matishak @martinmatishak.bsky.social Senior Cybersecurity Reporter at The Record from Recorded Future News. Send tips to martin.matishak@therecord.media. Signal: mmatishak.80
SwitHak (👁️) @swithak.bsky.social French Security Analyst (Fmr TelcoSec)
Cyber / Security / Geopolitics & and others.
Personal Account, My opinion!
Lang: ENglish & FRench
Alex Stamos @stamos.org CPO/CSO of Corridor.dev, teaching at Stanford.
Amaelle Guiton @amaelleguiton.fr Journaliste hybride Enquêtes x CheckNews @Liberation.fr
Cyber, désinfo, influence, renseignement et al.
https://www.liberation.fr/auteur/amaelle-guiton/
Contact sécurisé : amaelle_g(at)protonmail.com
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
Chris Krebs @thekrebscycle.bsky.social Aka @c_c_krebs over there 
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
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.
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
Valéry Rieß-Marchive @valerymarchive.bsky.social Rédac' chef de LeMagIT (fr)
Accro #cybersécurité #infosec
Collectionneur de #ransomware
follow: https://linktr.ee/valerymarchive
Alexandre Hugla @ahugla.bsky.social #TeamJuriste - Fluctuat nec mergitur
Expert Trust & Safety Scaleway
ex Multimania - Lycos Europe & Gandi
Guénaël @gnppn.fr Journaliste Médias chez Contexte. Net-goinfre.
https://gnppn.fr
tomchop @tomchop.me Cybersecurity nerd; #DFIR @ Google by day; FOSS, threat intel and malware analysis by night. Investigator, coder, terrible sense of humor.
https://yeti-platform.io and more (github.com/tomchop)
views are my own • he/him • tomchop.me
Gabriel Thierry @gabrielthierry.eurosky.social Journaliste, aux manettes de la newsletter cybercrime Pwned | gabrielthierry@protonmail.com https://linktr.ee/gabrielthierry
Cedric Pernet @cedricpernet.bsky.social Senior Threat Researcher @ Proofpoint.
Cybercrime / Cyberespionage aficionado.
Has worked in several CSIRTs/CERTs.
Metal & Rock dude, never enough guitars.
Motorcycles fan.
Wrote a book in French language on cyberespionage.
Ex-Law Enforcement Officer
marc rees @reesmarc.bsky.social Journaliste à L’informé (linforme.com) spécialisé droit & tech (LCEN, copie privée Arcom, propriété intellectuelle, rens, CADA, etc.). Ex-RC NextINpact.
Insta http://instagram.com/marcseer
Alexandre Archambault @archambault-avocat.fr French lawyer. Law & Bits. ePrivacy. CyberSec. Different Thinker / Avocat Numérique. Libertés publiques. Trucs pour ceux qui ont besoin d'en connaitre. Exégète professionnel depuis 1996.
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
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 
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
the grugq @thegrugq.bsky.social 
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
Jérôme Notin @jeromenotin.bsky.social DG Cybermalveillance.gouv.fr Pilote de 17cyber.gouv.fr
Éric Freyssinet @freyssi.net This is a placeholder account. Ceci est un compte de réserve.
Compte principal: @ericfreyss.mastodon.social.ap.brid.gy (accessible via un pont entre le #fedivers et #bluesky)
Zack Whittaker @zackwhittaker.com Security editor, TechCrunch
Signal: zackwhittaker.1337
My stories: techcrunch.com/author/zack-whittaker
My newsletter/blog: this.weekinsecurity.com
Matthieu Garin @matthieugarin.bsky.social 50 shades of #Cybersecurity ▪ 17+ years at #Wavestone ▪ News & opinion about #Infosec #IR #ThreatIntel ▪ Sometimes serious, sometimes not.
Clément Notin @cnotin.bsky.social 
Théophile Lenoir @theolenoir.bsky.social Social implications of AI - Sustainability & Media Ecosystems - ENS & Sciences Po
@s-team-approved.bsky.social @s-team-approved.bsky.social Cybersecurity practitioner in Luxembourg
Alexandre JOLY @kanjian.bsky.social Expert en #sécurité #Web // Développeur Web // #RSSI // #DPO // http://kanjian.fr // a.k.a. Inazo // Certifié ISO-27001 Lead Implementer // #Cesin member // https://www.youtube.com/@kanjian_fr/ // #ZenkSecurity member
@bsmt_nevers sur Twitter
Sekoia @sekoia.com Sekoia is the European cybersecurity company building the Cyber Operations Platform for the AI era.
OnDitChiffer @onditchiffrer.bsky.social 
newsoft @newsoft.bsky.social Hacker, cyber security expert, troll, etc.
NICOLAS ARPAGIAN @arpagian.bsky.social Cybersecurity & AI pundit,
Books writer : Editions de l'Observatoire, Mareuil Editions, PUF, Dalloz, Vuibert, Palgrave MacMillan.
Lecturer in 🇨🇵 (ENSP, Sciences Po Saint-Germain...) & 🇲🇦 (UM6P),
Columnist 🗞 @Les_Echos & 📻🎙@franceinfo.fr
Nicolas Caproni @caproni.fr Head of Sekoia Threat Detection & Research (TDR) team • Cyber Threat Intelligence • Detection Engineering • SOC Platform 🇫🇷 🇪🇺 • Hip-Hop • Basketball 
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
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
Paul Rascagneres @r00tbsd.bsky.social Lord of Loaders at Volexity
Dark Reading @darkreading.bsky.social One of the most widely read and trusted cybersecurity news sites, providing IT security professionals informed insights into the latest news and trends.
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)
Pierre Raufast @pierreraufast.com Auteur ☕📖✒️💻👾
La Trilogie Baryonique (SF), Octomes
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
Guillaume Rozier @grz.bsky.social Ici on parle tech et culture.
Conseiller numérique et données publiques du Président de la République.
Fondateur de CovidTracker et Vite Ma Dose.
Goupil @furaxfox.bsky.social Parceque !
(mes opinions n'engagent que moi)
Ailleurs en ligne:
http://goupilland.net
http://github.com/FuraxFox/
http://mastodon.acm.org/@FuraxFox
InfoSec 🇫🇷 @infosecfr.skyfleet.blue Flux d'info sur la cybersecurité, infosec
🇺🇸 @infosec.skyfleet.blue
🆘 @skyfleet.blue
Éric Freyssinet @ericfreyss.mastodon.social.ap.brid.gy Conseiller senior cybercriminalité & cybersécurité / Senior #cybercrime & #cybersecurity adviser #ComCyberMI #Gendarmerie | Alumni #Polytechnique (X92) […]
🌉 bridged from ⁂ https://mastodon.social/@ericfreyss, follow @ap.brid.gy to interact
Timoleon TILMANT @timoleon-tilmant.bsky.social Une vision totalement décallée de la sensibilisation à la cyber. https://jesensibilise.com
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.
Cyber Threat Alliance @cyberalliance.bsky.social CTA is a group of cybersecurity practitioners who work together to improve the overall security of the global digital ecosystem. We are stronger together. www.cyberthreatalliance.org
Loïc Guézo @lguezo.bsky.social CyberSEC Strategy @proofpoint
, own tweets - VP CLUSIF, CLUSIR #BZH - LCL (RCDS) ComCyberMI - Member http://ARCSI.fr - 🇫🇷 🇯🇵 - ECP, IHEDN, INHESJ
Matt Burgess (WIRED) @mattburgess1.bsky.social Security writer @wired.com
Cybercrime, privacy, surveillance, and more.
Signal: mattburgess.20 | Email: matt_burgess@wired.com
Jake Williams @malwarejake.bsky.social Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.
@nolimitsecu.bsky.social @nolimitsecu.bsky.social 
Clusif @clusif.fr Association de référence des professionnels de la cybersécurité en France, établissement reconnu d'utilité publique - clusif.fr
OSSIR @ossir.infosec.exchange.ap.brid.gy Observatoire de la Sécurité des Systèmes d'Information
[bridged from https://infosec.exchange/@ossir on the fediverse by https://fed.brid.gy/ ]