Mathieu Feuillet @mathieufeuillet.bsky.social Former Head of CERT-FR. Former Head of Operations at ANSSI
Matthieu Audibert @matthieu-audibert.fr Officier @Gendarmerie - docteur en droit privé et sciences criminelles @uparisnanterre.bsky.social #Cybercriminalité #Cybersécurité - #ComCyberMi | Compte personnel
Hervé Letoqueux @herve.checkfirst.network CEO at CheckFirst @checkfirst.network
also at ObSINT @obsint.eu
When in doubt, refrain from doubting.
Signal:hlx75_CF.96
#fimi #disinfo #osint #CTI #music #art #photography
Ex #VIGINUM, ex #ANSSI
Paris, France
Rayna 🤓🇪🇺👩💻📚✍️ @maliciarogue.bsky.social 💼CEO RS Strategy
✍Award-winning writer
🧠Practitioner in residence @ CIS-CNRS
ex🧬scientist | Amba @DigitalEU | ❤️🚆 | Polylingual
Uncertainty management, strategy, foresight #Infosec #EU #FLOSS
I contain multitudes
📌Elsewhere: https://linktr.ee/maliciarogue
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.
@cybart.eurosky.social @cybart.eurosky.social Cyberdéfense, guerre de l'information, fondateur du M82 project, producteur indépendant d'endorphine, trail nature et pas mal de trucs ⚓ ♠️
https://github.com/M82-project
Anaïs Meunier @principedebase.bsky.social DISARM, STIX : rapprocher le cyber et la manipulation de l’information.
Signal sur bruit happy founder & M82-project happy manager
Production du podcast Signal sur le bruit, le podcast qui part de la forêt pour aller à l’écureuil
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 
Valéry Rieß-Marchive @valerymarchive.bsky.social Rédac' chef de LeMagIT (fr)
Accro #cybersécurité #infosec
Collectionneur de #ransomware
follow: https://linktr.ee/valerymarchive
Bluetouff @bluetouff.bsky.social - https://l0g.fr : NextGen OpenSource Economic Risk Monitoring Lab
- Essai : https://bluetouff.com/auditer-l-opacite.html
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
M82 @m82.eurosky.social M82 project est une association d'experts en cybersecurité, cyberdéfense et lutte contre la manipulation de l'information. Il vise à sensibiliser le public, faciliter le partage des connaissances et produits une bibliographie #cyber collaborative
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
Nicolas Caproni @caproni.fr Head of Sekoia Threat Detection & Research (TDR) team • Cyber Threat Intelligence • Detection Engineering • SOC Platform 🇫🇷 🇪🇺 • Hip-Hop • Basketball 
Intrinsec @intrinsec.bsky.social Notre métier ? Protéger le vôtre !
Management des risques, Évaluation, Cyber Threat Intelligence, Détection, Réponse (CERT), Innovation.
Pour en savoir plus, visitez intrinsec.com
CyberVeille @cyberveille.bsky.social cybernews curated all around the cyberworld
Olivier Caleff @caleff.bsky.social 
Matthieu Garin @matthieugarin.bsky.social 50 shades of #Cybersecurity ▪ 17+ years at #Wavestone ▪ News & opinion about #Infosec #IR #ThreatIntel ▪ Sometimes serious, sometimes not.
Sekoia @sekoia.com Sekoia is the European cybersecurity company building the Cyber Operations Platform for the AI era.
François Deruty @derutyf.bsky.social threat intelligence at https://www.sekoia.io / former head of cert-fr
https://blog.sekoia.io
Jérôme Notin @jeromenotin.bsky.social DG Cybermalveillance.gouv.fr Pilote de 17cyber.gouv.fr
Gerome BILLOIS @gbillois.bsky.social In the cybersecurity field for the last 20 years, love to share insights. Book author https://www.hachette-pratique.com/auteur/gerome-billois/#
Luména Duluc @lumena.bsky.social 'Pataphysicienne #numérique & #cybersécurité option #SNC4. A la solde du bon sens. ex @Clusif.fr
Jean-Sylvain Chavanne @jean-sylvain.bsky.social 
Kevin Limonier @kevinlimonier.bsky.social Professor in russian studies & geography (Institut Français de Géopolitique, université Paris 8) - geopolitique.net
Vice director of GEODE - geode.science
Co-founder of Cassini - cassini.group
#Russia #Geopolitics #Cyberspace
Stéphane Taillat @staillat.bsky.social Assoc. Prof (MCF HDR) French Institute of Geopolitics/Univ. Paris 8 & AMSCC. Member GEODE
IR/Strat. Studies. Pols de cybersécurité. Post 9/11 US National Security/Foreign Pol.
Auteur: De la cybersécurité en Amérique (PUF, 2024)
La cyberguerre (QSJ,2026)
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
Loïc Guézo @lguezo.bsky.social CyberSEC Strategy @proofpoint
, own tweets - VP CLUSIF, CLUSIR #BZH - LCL (RCDS) ComCyberMI - Member http://ARCSI.fr - 🇫🇷 🇯🇵 - ECP, IHEDN, INHESJ
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
Jonathan Guiffard @joeguiffard.bsky.social 🇨🇵 in 🇬🇧
Researching strategic competition on
1. 🇺🇸 Cyber & SIGINT
2. 🌾W-African rivalries
🔬PhD in Geopolitics @ GEODE (IFG/Paris 8 Uni.)
🪔 Teaching @ Sciences Po Paris (intel&cyber)
🏖 Fmr 🇨🇵 gov
Guillaume Valadon @guedou.bsky.social A geek. What else?
https://my.geekstory.net
TechCrunch @techcrunch.com Technology news and analysis with a focus on founders and startup teams.
Got a tip? http://techcrunch.com/tips
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/
Pirate Software @piratesoftware.live Game Dev - Streamer 💛 Go Make Games - https://develop.games 💜 Ferret Rescue - https://ferrets.live 💛 Business: Pirate@sidequestmedia.com
Internet Archive @archive.org Internet Archive is a non-profit research library preserving web pages, books, movies & audio for public access. Explore web history via the Wayback Machine. 
AT Protocol Developers @atproto.com Social networking technology created by Bluesky.
Developer-focused account. Follow @bsky.app for general announcements!
Bluesky API docs: docs.bsky.app
AT Protocol specs: atproto.com
The Verge @theverge.com Covering life in the future
Subscribe here: https://www.theverge.com/subscribe
Alyssa Miller 🦄👩✈️ @alyssam-infosec.com Hacker, CISO, and commercial pilot. Certified Bluesky Elder. Author and International Speaker, Chief advocate of #DoBetterBeBetter
Compassion and empathy are traits in short supply but necessary to make this world a better place.
alyssasec.com
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/
Killed by Google @killedbygoogle.com Disappointment as a Service by @codyogden.com (they/he)
👋🔪💀
The Matrix.org Foundation @matrix.org Matrix is an open network for secure, decentralised communication. Please support at matrix.org/support
adafruit @adafruit.com Engineer - Founder of Adafruit - Brooklyn, NY USA - Manufacturer, open-source hardware, certified Minority and Woman-owned Business Enterprise (M/WBE) https://adafruit.com - support https://forums.adafruit.com & order/customer help support@adafruit.com
Jack Sweeney @jacks.grndcntrl.net Aviation, Space and ElonJet
@elonjet.net
https://grndcntrl.net/
Ars Technica @arstechnica.com Original news, reviews, analysis of tech trends, and expert advice on the most fundamental aspects of tech.
Grafana @grafana.bsky.social Open and composable observability.
https://grafana.com/
nixCraft @cyberciti.biz Enjoy Linux & Unix-like systems, open-source software, and programming/compsci? Into Sysadmin & DevOps? Follow us to make the most of your IT career! Discover new tools and apps daily, plus a dose of humor ⤵️
https://www.cyberciti.biz
GrapheneOS @grapheneos.org Open source privacy and security focused mobile OS with Android app compatibility.
https://grapheneos.org/
Liam @ GamingOnLinux @gamingonlinux.com News + Opinions. UK based. One person mostly.
Support on Patreon: http://patreon.com/gamingonlinux
https://www.gamingonlinux.com (official account).
Email tips: contact@gamingonlinux.com
ElissaBeth @elissa.bsky.social Mostly Infosec Posts. Formerly at Brave, other privacy/security startups. Published the anthology "Lean Out" in 2015.
Running a Security Firm, @ me for a consultation.
Raspberry Pi @raspberrypi.com We make very small computers which you can buy from just $4. We are also the literal coolest.
Make It Hackin @makeithackin.bsky.social Maker, Hacker, Engineer.
TikTok/YouTube/Snapchat/Instagram and other links below:
https://beacons.ai/MakeItHackin
Mastodon -> Bluesky user lookup/follow app:
https://skeeter.streamlit.app/
Tuta @tuta.com Tuta is a secure email, calendar and drive provider with quantum-safe encryption. Open source & forever free! 🔒
Visit us 👉 tuta.com
#TurnONprivacy
Debian @debian.bsky.social The Universal Operating System; items posted automatically from https://micronews.debian.org and https://bits.debian.org.
https://www.debian.org
8Bit @memoriesin8bit.bsky.social Game developer / Saturday Morning Marble Game / #DDGravityDive / looking for a new #gamedev gig / DRM-Freedom fighter / Drinker of lotsa coffee / Onions are my own
https://8bit-memories.com
https://mastodon.gamedev.place/@memoriesin8bit
CajunGeek @cajungeek.tv #AuDHD PTSD | Air Force #Veteran | Gamer & #Streamer in da bayou!
Twitch | YouTube | Tiktok
#destiny2creator #ubisoftcreator
Supporter of @StackUp.org
Socials: cajungeek.tv
Email: CajungeekTV@outlook.com
#Destiny2 #FinalFantasy
Martin Guay🍁 @martinguay.cryovex.com 🍁 Ottawa | 🏳️🌈 Top/Vers/Poly/Demi |
Tech, gadgets & reviews @ CRYOVEX
*18+ NSFW content*
🔗 cryovex.com/martin-guay-bio-social-media
✉️ business-inquiry@cryovex.com
#GayBear #GayChub #Tech #Ottawa
System76 Blog @blog.system76.com.web.brid.gy Official System76 Blog
[bridged from https://blog.system76.com/ on the web: https://fed.brid.gy/web/blog.system76.com ]
👻 @0x0.sigint.team Security. People matter most. Get off X, fool.
◇SatyrDiamond◇ @satyrdiamond.bsky.social Autistic Guy. http://linktr.ee/satyrdiamond
fedi: @SatyrDiamond@mastodon.cloud
discord: discord.gg/ReZBqqMhFR
Flipboard Tech Desk @techdesk.flipboard.social.ap.brid.gy We bring you the latest tech news, deep dives and perspectives on topics like AI, social media and innovations. Posts are handpicked by Flipboard's editorial team […]
🌉 bridged from ⁂ https://flipboard.social/@TechDesk, follow @ap.brid.gy to interact
Canonical @canonicalltd.bsky.social Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things.
#Canonical #Ubuntu #Linux
shellsharks @shellsharks.shellsharks.social.ap.brid.gy Infosec researcher | Indieweb enthusiast | Find me @ https://shellsharks.com
#infosec #cybersecurity #tech #indieweb searchable
Profile picture: A red shark […]
🌉 bridged from ⁂ https://shellsharks.social/@shellsharks, follow @ap.brid.gy to interact
InfoSecSherpa 🏔️ Lake Ontario 🚣♀️ @infosecsherpa.bsky.social #Librarian turned #InfoSec & #DataPrivacy practitioner. #Philly area hoagie mouth. InfoSecSherpa and Sherpa Intelligence: Your Guide Up a Mountain of Information! Portfolio: https://linktr.ee/infosecsherpa #GoBirds
ewan @ewancroft.uk Anglo-Scottish pagan, poet, and programmer with an entirely reasonable enthusiasm for werewolves. Happily European, learning Gàidhlig na h-Alba.
Barnacules @barnaculesnerdgasm.com Official personal BlueSky account for Barnacules the producer of Barnacules Nerdgasm™️ on YouTube and Twitch!
Fonephreak02 @fonephreak02.2600.blue Tech content etc. mixed, pan, audhd, I tinker on whatever hits my fancy. Electronics, mechanics and old telecommunications things mostly.
That dude on tiktok.
Tanisha L. Turner @cybersecdiva.bsky.social Cybersecurity Professional | Malware Researcher | Threat Hunter | <Detection> | SecOps
All Views expressed are my own.
Jeff Geerling @jeffgeerling.com Father, author, developer, maker. Sometimes called "an inflammatory enigma". #stl #ansible #k8s #raspberrypi #mac #crohns www.jeffgeerling.com
seeknay @seeknay.com 💻 Identity & Collaboration Engineer 🎮 Gamer ☕️ Coffee Drinker 🍕Self-Proclaimed Pizza Connoisseur 🎧 EDM Lover 🖖 StarTrek Fan
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
WIRED @wired.com For Future Reference.
Sign up for our newsletters: https://wrd.cm/newsletters
Find our WIRED journalists here: https://go.bsky.app/Boj9b5E
Jakoby @iamjakoby.bsky.social 
Parrotassassin15 @parrotassassin15.bsky.social Names parrot 🦜
Founder of https://parrot-ctfs.com
Jonathan Boring @jonathanboring.bsky.social Tech Creator
Michael Moore @michaelmoore.ai #AI, #Cybersecurity, and other technology topics. Trying to make the world a better place. Personal account; my views only. Work: https://s1.ai/purple at @sentinelone.com
Sam Rad 🔮 @samradofficial.bsky.social 𝗙𝗨𝗧𝗨𝗥𝗜𝗦𝗧 & 𝗔𝗡𝗧𝗛𝗥𝗢𝗣𝗢𝗟𝗢𝗚𝗜𝗦𝗧
• Technology, Society, Geopolitics
• Keynote Speaker & Author
• Student of Humanity ✨
🌐 http://Sam-Rad.com
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.
TheBeardOfKnowledge @thebeardofknow.bsky.social 52K on Tiktok, New to BlueSky.
Sharing my 25+ years IT knowledge.#it #networking #pc #pcrepair #gaming #lowvoltage #tech #techsupport #helpdesk #funny
Liran Tal @lirantal.com 🦄 Node.js Secure Coding: http://nodejs-security.com
🌟 @GitHub Star
🏅 @OpenJS Pathfinder award for Security
🥑 DevRel at @snyksec
Internet Engineering Task Force @ietf.org The overall goal of the IETF is to make the Internet work better by producing open technical standards.
PortSwigger @portswigger.net We are a leading provider of software and learning on web security. We make Burp Suite and the Web Security Academy.
Burp Suite @burpsuite.bsky.social Burp Suite is the leading software for web security testing.
Black Hat @blackhatevents.bsky.social The world's premier Technical Cybersecurity Conference Series
DEF CON Parrot🦜 @defconparrot.bsky.social Latest News, Fun Moments & Event updates from the DEF CON Community • Follow to stay updated!💛
#DEFCON33 Dates:🎉Aug 07 - Aug 10, 2025
Link of Links {
Resources🌍 •> https://linktr.ee/defconparrot
Updates🗞️ •> https://x.com/defconparrot
}
Hackread.com @hackread.bsky.social The official Bluesky account of the most reliable cybersecurity news platform brings exclusive dark web, tech, hacking news, and much more. Contact: admin@hackread.com.
Ryan M. Montgomery @0dayctf.bsky.social Pentester / Serial Entrepreneur / Child Safety Warrior — http://tryhackme.com/p/0day
Christian Folini @christian-folini.ch Web application security guy with a passion for OWASP's open source WAF projects and National Cyber Strategy.
Maintains "Swiss Cyber Security" starter pack and cherishes his small collection of medieval helmets.
Tom Lawrence @lawrencesystems.com ⚠Tech Enthusiast, Open Source Advocate, Content Creator, DM's are not for tech support but my forums are. ⚠
https://lawrencesystems.com/
Kevin @adjacentnode.com VLAN therapist. Wi-Fi whisperer.
15 years of proving it wasn’t the network.
Follow me, nerds.
watzon @watzon.tech - ADHD-fueled dev
- Full-stack chaos engineer
- https://butterbase.app and https://usehomelytics.com
—>realhackhistory.org @bsky.realhackhistory.org O͖̺͊̕͡ͅfficial bluesky for realhackhistory YouTube channel & blog, skeeting the #history of phreaks, #hacking & #hacktivism as well as portrayal of hackers in media. I do some threat intel & OSINT. No AI used. Hobbyist #skystorian.
https://realhackhistory.org/
Jason Koebler @jasonkoebler.bsky.social Journalist @404Media.co
Signal: jason.404 // email: jason@404media.co
maia arson crimew 🏴 @crimew.gay it/she
investigative journalist, hacktivist, dj, award losing musician and many other things
signal: @nyancrimew.01
im THAT fucker, look me up on wikipedia
some posts may be by ryan
https://maia.crimew.gay
Jason Scott @textfiles.com Free-Range Archivist at the Internet Archive. TEXTFILES.COM guy. Documentary and Podcast creator. Troublemaker.
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
Gabriella "Biella" Coleman @biella.bsky.social Professor of Anthropology @Harvard, Hacker Studies & More https://gabriellacoleman.org/
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