Sean O’Connot @vhumint.bsky.social Head of the Equinix Threat Analysis Center (ETAC) | SANS Author & Instructor | Combat Veteran | Thoughts are my own.
The Vertex Project @vertexproject.bsky.social We create technology for analytical teams to provide intelligence-driven insights to decision makers.
For more info, visit https://vertex.link!
CheckFirst @checkfirst.network We pioneered algorithm analysis and deploy expert skills to probe the digital space and its actors.
https://checkfirst.network
Virus Bulletin @virusbtn.bsky.social Security information portal, testing and certification body.
Organisers of the annual Virus Bulletin conference.
malmoeb.bsky.social @malmoeb.bsky.social Head of Investigations at InfoGuard AG - dfir.ch
Hayley Benedict @hayleybenedict.bsky.social Cyber Intelligence Analyst at RANE
Available for media inquiries 🙂↔️🙂↕️
Eliot Higgins @eliothiggins.bsky.social Founder and creative director of Bellingcat and director of Bellingcat Productions BV. Author of We Are Bellingcat.
kurt baumgartner @kurtisj.bsky.social cybersecurity researcher, co-founder TLPBLACK.
thanks for all the xor
Martijn Grooten @martijngrooten.bsky.social Threat researcher, rights supporter, obsessive reader, marathon runner, eternal traveler, serial migrant, music blogger, lapsed mathematician.
https://lapsedordinary.net/
Signal: martijngrooten.37
PIVOTcon @pivotcon.bsky.social Threat Research Conference in Malaga, Spain, 6-8 May 2026
#StayTuned #ComingSoon #PIVOTcon #PIVOTcon26
https://pivotcon.org
Max Rogers @maxrogers5.com Sr. Director of SOC at Huntress. Ex-Mandiant/FireEye. Bringing security to the Fortune 5,000,000.
Botconf @botconf.infosec.exchange.ap.brid.gy The Botnet and Malware Ecosystems Fighting Conference
14th ed - Workshops (27th) & Conference (28th-30th) April 2027 in Vannes - Golfe du Morbihan, France
🌉 bridged from ⁂ https://infosec.exchange/@botconf, follow @ap.brid.gy to interact
@G4l4drim @g4l4drim.bsky.social oldschool freestyle stunt hacker.
#CERT #BlueTeam
RT != endorsement, make your own mind
n0secure.org
Sébastien Larinier @sebdraven.bsky.social Malwarist,Threat Huntist and pythonist / core dev of #yeti/ member of @ProjectHoneynet/ co-organizer #BotConf / researcher at @GroupeESIEA
@aptwhatnow.bsky.social @aptwhatnow.bsky.social 
thesilence @thesilence.bsky.social Principal analyst @vtxproject / #Synapse
#APT1 report / former Mandiant
Doing #threatintel before it was a thing
.:: tAd ::. @o0tad0o.bsky.social ~ InfoSec ~ Hack ~ mostly blue.
-> Founder of https://www.StalkPhish.com
Maxime Audinet @maudinet.bsky.social Assistant Professor of International Relations & International Communication @inalco.fr
▪️Russian Politics & Media
▪️Influence, Foreign Policy & Authoritarianism
Co-founder @coruscant-eu.bsky.social
Previously Research Fellow @irsem.bsky.social
Frankylitics @frankylitics.bsky.social Senior Social Media Assessment and Analysis enthusiast - Disinformation analyst - former NATO HQ. Keynote Speaker at global events.
Intelligence and National Security @intnatsecjournal.bsky.social Intelligence and National Security is a leading journal focused on the role of intelligence and secretive agencies in international relations and politics.
https://www.tandfonline.com/journals/fint20
VIGINUM @viginum.bsky.social VIGINUM est le service technique et opérationnel de l’État chargé de la vigilance et de la protection contre les ingérences numériques étrangères.
gnida project @gnidaproject.bsky.social Всероссийский научно-исследовательский институт гнид
gnidaproject.substack.com
François Deruty @derutyf.bsky.social threat intelligence at https://www.sekoia.io / former head of cert-fr
https://blog.sekoia.io
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
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
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
Sébastien Mériot @smeriot.bsky.social Head of CSIRT @ovhcloudfr.bsky.social trying to make the Internet a better place. #infosec
Vas Panagiotopoulos @vaspanagiotopoulos.com Journalist interested in #surveillance | Contributor: @wired.com | @ftm.eu | Covers 🇬🇷 for @rsf.org | Researcher: @deakinuniversity.bsky.social | 2026 Fellow @techpolicypress.bsky.social
☏ Signal: vas.99
http://vaspanagiotopoulos.com
Social Media Lab @socialmedialab.ca SocialMediaLab.ca
- News, analysis & views by @philipmai.com re: the politics of tech, social media, AI, immigration, democracy, mis/disinfo, war & propaganda. Explore our suite of social media tools for public interest research: socialmedialab.ca/apps/
Oleg Shakirov @shakirov2036.bsky.social I study Russian foreign policy, cyber security, arms control
TuxPanik @tuxpanik.bsky.social Head of CERT & PSIRT
#infosec #DFIR #malware #pentest #legal #CTI #MISP #OpenCTI #TheHive opinions are my own
Jipe @cyberjipe.bsky.social I fix accepted risks.
Incident Response & Purple Teaming @ CrowdStrike.
Previously DFIR @ANSSI_FR / @CERT_FR. Former @CertSG team leader.
Andrew [Retired from Sad] @athomashemlock.bsky.social You guys want a drink or something. I think I have diet coke and lemonade and maybe some coffee from this morning.
He/him.
Dario D'Angelo @dangelodario.it Blog indipendente su http://dangelodario.it
La "casa dei retroscena" di politica e geopolitica.
Per iscriversi: https://steadyhq.com/it/dangelodario
Mark Lechtik @marklech.bsky.social Senior TI Analyst @ MSTIC.
Former Senior RE @ FLARE.
EUvsDisinfo @euvsdisinfo.eu We counter Kremlin information warfare, one claim at a time | Not official EU position
Paul Rascagneres @r00tbsd.bsky.social Lord of Loaders at Volexity
The Banshee Queen 👑 @cyberoverdrive.bsky.social #threatintel @Recorded Future | Formerly @PwC GTI | Malware & infrastructure analysis with a side of cyberpunk. 🌃🌌 She/her, support 🏳️🌈🏳️⚧️✨
Allison Nixon @nixonnixoff.bsky.social Chief Research Officer @ Unit 221B
most reliable way to reach me is my company's outreach form on the website
my other urls:
https://infosec.exchange/@nixonnixoff
https://www.linkedin.com/in/allison-nixon-81822124/
don't bother contacting me on twitter
Allison Wikoff @saltywikoff.bsky.social #threatintel Americas Lead @pwc. Hype woman. Beach Rat. Former Adjunct @Columbia. Lover of all the APTs. | All views are my own. @SaltyWikoff@infosec.exchange (not really though)
@SaltyWikoff at the other place
Alex Delamotte @alex.leetnoob.com I’m just a girl who lives in Vegas & likes cloud malware, idk anymore.
Patrice <GomoR> Auffret @patriceauffret.bsky.social ONYPHE founder, CEO and CTO - FreeBSD & Perl sculptor rather than GNU/Linux & Python - My views are those of my employer
Bartek Jerzman @handle.invalid Hunting ghosts in wires and boxes, Head of CTI, former NCSC-PL, PL Navy #fightingthreats | @PIVOTcon.bsky.social co-founder & Chief Meme Officer
Nicolas Quénel @nicolasquenel.bsky.social Journaliste pour Intelligence Online. Pôle Europe-Russie. Renseignement d'Etat, guerre de l'information, actions clandestines.
Auteur "Allô, Paris ? Ici Moscou" et "Task Force Baguette" chez Denoël.
Thord Are Iversen @thelookout.bsky.social Military and defense issues, as seen from NATOs northern flank.
Special interest: The Russian Navy.
Independent Defense Analyst, all analysis and opinions are my own
Anna Gvarishvili @annagvarish.bsky.social Journalist and editor, providing news and analysis on the drastic reversal of liberal democratic values in Georgia 🇬🇪 Supporting Ukraine with all my heart and passion 🇺🇦
Lil Juan Rey @johnking.bsky.social 🏥🍯 TLP: Burnt Sienna, Omni Consumer Products Manager, High Altitude Treasure Recovery
Colin Gerard @colingerard.bsky.social Personal account
Head of Threat Analysis @viginum.bsky.social
PhD in Geopolitics @univ-paris8.fr
Researcher @ifgeopolitique.bsky.social
Russian FP, IOs, OSINT investigations
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
Veli-Pekka Kivimäki @vpkivimaki.bsky.social Intelligence analyst by day, OSINT in academia, engineer at heart. Now: Finnish Security and Intelligence Service. Adjunct, Johns Hopkins. Past: Finnish Defence Forces, Bellingcat, Microsoft, Nokia.
Tony Lambert @forensicitguy.bsky.social Recovering sysadmin that now chases adversaries instead of uptime. Sr Malware Analyst @redcanary
Steve YARA Synapse Miller @stvemillertime.bsky.social writing & sharing on adversary tradecraft, malware, threat detection, ics/ot + cyber physical intel, and of course all things #yara
alden @re.wtf malware enjoyer • macOS security
https://alden.io
Anton Cherepanov @cherepanov.bsky.social Malware Researcher
RUSI @rusi.bsky.social Royal United Services Institute for Defence and Security Studies. Founded in 1831, RUSI is the oldest defence and security think tank in the world.
Website 💻: https://rusi.org/
WhatsApp 📱: https://bit.ly/4h0M5FQ
Alexander Leslie @aejleslie.bsky.social Cybercrime & Hacktivism @ Recorded Future | Insikt Group | Curated Intelligence | @aejleslie everywhere else.
Paul Chichester CMG MBE @0xchich.bsky.social Director Operations, NCSC, GCHQ. 30+ years in Government Cyber Operations. Views entirely my own and do not necessarily reflect those of my organisation. 🏴 🇺🇦
Zach Dorfman @zachsdorfman.bsky.social Washington Post National Security Reporter. Past features in Politico, Rolling Stone, Wired, Foreign Policy. Working on a book on the history of deep cover for Penguin-Random House.
It’s always Berlin 1989 somewhere. Signal: zsd.19
Craig Williams @craigwilliams.bsky.social I build threat intel stuff.
Joseph Cox @josephcox.bsky.social Hacking/crime/privacy journalist. Author of DARK WIRE, buy here: https://www.hachettebookgroup.com/titles/joseph-cox/dark-wire/9781541702691/#preorder Co-founder of 404 Media. Signal: joseph.404 Email: joseph@404media.co
Meredith Whittaker @meredithmeredith.bsky.social President of Signal, Chief Advisor to AI Now Institute 
Ben Read @benread.bsky.social CTI @wizsecurity.bsky.social
Adjuct at @jhu.edu - SAIS
Nonresident Fellow at @atlanticcouncil.bsky.social - Cyber Statecraft
Previously NSC44, Mandiant, Google
Go Mammoths
Brody @brody-n77.bsky.social Cybersecurity, Battletech, and Sci-Fi.
Michael Fourdraine @v0gg.bsky.social InfoSec Practitioner, Incident Response gronk. My views are not that of my employers @ Cyber Janitorial Services
Mastadon: Vog@infosec.exchange
Olaf Hartong @olafhartong.nl Security researcher with a camera | @FalconForce.nl | Microsoft MVP | Snow man role model | https://youtube.com/@olafhartong
auonsson @auonsson.bsky.social Every system is a sensor if you hold it right.
Main arena, Baltics. 🇸🇪
mastodon.world/@auonsson , x.com/auonsson backup 🇸🇪
David Oxley @oxley.io Interim head of information security at Anduril Industries. @CitizenLab.ca Research Fellow. Former federal agent. Fan of space, books, cyberpunk, sci-fi, espionage history, and storms. Personal account. 🇺🇸 🇺🇦 🇹🇼 #ThreatIntel
Storm chasing 📸 🌪️: @wxdox.com
visi stark @invisig0th.bsky.social Founder of The Vertex Project (@vtxproject)
Father of the #APT1 Report @Mandiant.
Inventor of #synapse, #vivisect, UNCs, imphash, ...
DEFCON CTF Champion, Founder of Kenshoto
Mark Parsons @mparsons.bsky.social Threat Analyst @ Microsoft - mostly post about astrophotography and occasional some work. Posts are my own
Daniel Gordon @validhorizon.bsky.social Thought Trailer, Cyber Threat Intel, DFIR. He/Him. Bucketing, sharing, and bacon-saving as a service. https://validhorizon.medium.com/
John @bigbadw0lf.bsky.social Frontline Intelligence with #AdvancedPractices 🦅 @Google Threat Intel | views are my own
SLEUTHCON @sleuthcon.bsky.social Tickets for 2026 are now available!
https://www.sleuthcon.com
CYBERWARCON @cyberwarcon.bsky.social CYBERWARCON is a one-day conference in Arlington, VA focused on the specter of destruction, disruption, and malicious influence on our society through cyber capabilities.
cyberwarcon.com
Eric Hutchins @ehutchins.bsky.social Started in infosec, co-authored the kill chain paper, dabbled in countering influence operations at Meta, and now back to infosec. Lover of command line, python, and rust.
Christopher Glyer @cglyer.bsky.social Microsoft Threat Intelligence Center - Former Incident Responder & Chief Security Architect @Mandiant
Dakota @dakotaindc.bsky.social China-Focused Consultant @SentinelOne | Nonresident Fellow @ACGlobalChina | Adjunct @Georgetown | Unprofessional Cook | ❤️💜💙
https://linktr.ee/dakotaindc
Lee Foster @leefosterintel.bsky.social AI Security / Cyber Threat Intel / Disinformation / Influence Operations. Founder aspectlabs.ai, Adjunct at Johns Hopkins SAIS Alperovitch Institute for Cybersecurity Studies, formerly Director of Influence Ops Analysis at Mandiant. All views my own etc.
Shane Huntley @shanehuntley.bsky.social Aussie security / tech guy.
Google Threat Intelligence. Co-founder Threat Analysis Group (TAG). Tweets are my own not my employers.
Joe Roosen @jroosen.bsky.social SpyCloud - Director of Security Research, Cryptolaemus Coordinator, Emotet(Ivan)/QBot(Boris) Destroyer, gold prospector & former sysadmin.
Meduza in English @meduza.io Breaking news in Russia, investigative reports, interviews, and opinions. In English. You’re welcome. https://meduza.io/en
rce_trent @rce-trent.bsky.social Aspiring hardware electronic sommelier. Hunter & Gatherer Of Threat Actors. Former Fortinet. Former Symantec. Former Big4. Former Transformer.Containers and Cloud. CTI League Member. Fan of Honeypots. CI/CD your way! 
Calwarez @calwarez.bsky.social Director for Malicious Infrastructure Discovery @ Recorded Future | Views my own
ps66uk @ps66uk.bsky.social 
Bry @bryancampbell.researchers.blue Mostly complaining.
DΛNIΞL @hypoweb.bsky.social Dot Connector / Storyteller / Security Researcher
Christopher Vega @thevega.bsky.social I do threat intel things. Former Activision Blizzard // Epic Games. Currently putting the G in 5G. Kinda passionate and extremely okay. Opinions are my own. He/him/#FSD 🦆
Fran Donoso @francisck.com I'm an infosec person who currently works as the CTO of a security services firm. Have done DevSecOps, Red Teaming, and reverse engineering. I reversed some of the tooling leaked by the Shadow Brokers and spoke about it publicly 
Tom Hegel @hegel.bsky.social Distinguished Threat Researcher, SentinelLABS Research Lead @SentinelOne. Nation-state operations, research systems & applied AI for threat intelligence. Find me at https://TomHegel.com
Heinbrian @heinbrian.bsky.social #w00w00 #00m00m
Will T @bushidotoken.net 🇬🇧 | Senior Threat Intelligence Advisor at Team Cymru | Co-author SANS FOR589 | Co-founder Curated Intel
JD Work @hostilespectrum.bsky.social Former intel, now academic @NDU_CIC, @TheKrulakCenter, @SIWPSColumbia @ColumbiaSIPA, @CyberStatecraft, @ElliottSchoolGW, @PAISWarwick. Apolitical, views=own
Azim Khodjibaev @ashukuhi.bsky.social Cisco Talos Threat Intelligence and Interdiction
Artemis Team
Barbara @barbarasidney.bsky.social ❤️💚🖤
She/her 🏳️🌈
Head of #CTI @ OWN.security (ex SEKOIA)
Fighting LGBTQI+phobia & neo-colonialism
#NBA2K power forward 🏀
#OnHoldProjects : martinican feminist book club ; Caribbean focused CTI research.
Costin G. Raiu @craiu.bsky.social Romanian antihacker from another planet. #threatintel #yara #chess #taekwondo black belt
Motto: "One reboot a day keeps the implant away"
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
Instacyber @instacyber.bsky.social Reveals APTs with one easy application! | Artificial amateurs, aren't at all amazing // Analytically, I assault, animate things
Kyle Ehmke @kyleehmke.bsky.social Threat intel researcher focused on infrastructure hunting. Views are my own and not my employer's.
Hexacorn @hexacorn.bsky.social Red Brain, Blue Fingers
Malware Analysis, Reverse Engineering, Threat Hunting, Detection Engineering, DFIR, Security Research, Programming, Curiosities, Software Archaeology, Puzzles, Bad dad jokes
https://www.hexacorn.com/blog/
hexacorn@infosec.exchange
Sekoia @sekoia.com Sekoia is the European cybersecurity company building the Cyber Operations Platform for the AI era.
Marc @ctimarc.bsky.social