Charity 🫶 @charityw4cti.bsky.social Pattern recognizer *Author: China’s Digital Colonialism, Diamond Model for Influence Operations * Public Speaker
Phil Hagen @philhagen.com DFIR, security, networking, all things tech, OneWheel, Radinn, travel, LEGO, and probably a whole lot more in small and sporadic bits. (Squirrel!)
Fierce and unapologetic ally. He/him/his.
Anders Fogh @andersfogh28.bsky.social 
Greg @jamyang.net 
Gil Baram @gil-baram.bsky.social www.gilbaram.com
geech @captaingee.ch cybercrime connoisseur && exploitz engineering enthusiast | synapse fanboy | second breakfast enthusiast
Huw J. Davies @huwjdav.bsky.social Professor of British Military History @kcl.ac.uk | Associate Dean Professional & Online Education SSPP | Award-Winning Book: Wandering Army | Next one: Forging Armageddon @YaleBooks.bsky.social | FRHistS
Hugo Kaaman @hugokaaman.bsky.social Researcher & analyst. Focus on SVBIED design & tactics by non-state actors. Articles @MiddleEastInst @JanesINTEL @EuroEyeRad. IR grad, MENA studies
John Ridge 🇺🇸🇺🇦🇹🇼 @johnridge.bsky.social Physics | Weapons Systems | National Security | Foreign Policy | Arms Exports | Security Assistance | Tochnyi Contributor | Donate to Liberty Ukraine Foundation
Craig Whiteside @craigwhiteside.bsky.social teach for the Naval War College resident program at NPS in Monterey, CA; The ISIS Reader (Hurst 2020) and Non-state Special Operations (Routledge, 2025); dad, scout, sports fan, and Geronimo https://theisisreader.substack.com/
Travis Reese (Against war with NATO) @ctreese2.bsky.social Small town kid. Joined the military. Stuck w/ it for 21 yrs. Stayed in defense. Planner & strategist. Inventor of the coffee egg cream & mocha coffee egg cream
Dead Carl @deadcarl.bsky.social www.deadcarl.com
Writer on Clausewitz, international relations, and German history. Words in American Purpose and Liberal Currents.
Kiran Pfitzner
Olivia Garard @teaandtactics.bsky.social 
Tony Stark @tonystark.bsky.social Author of the novel, EX SUPRA. Buy it here: https://www.amazon.com/Ex-Supra-Tony-Stark/dp/B0B6L9TD6J/ref=nodl_?dplnkId=f9e567ed-9cbb-4a51-9ebe-37646193cff5
Sequel: Duality, coming soon.
Substack: Breaking Beijing.
Podcast: WarTalk (ChinaTalk)
Minor Spear Carrier @tyrellmayfield.bsky.social || Pathfinding in a Brave New World || Former Minor Spear Carrier || Redefining the Modern Military || Writing a Kabul Memoir || Loyal Servant of the Republic || No Official Statements || BoD at @thestrategybridge.sky.social ||
Aaron Y. Zelin @azelin.bsky.social Senior Fellow @ Washington Institute for Near East Policy | Visiting Research Scholar in Dept of Politics @ Brandeis | Founder of Jihadology | Author of “The Age of Political Jihadism: A Study of Hayat Tahrir al-Sham”
jihadology.net
jihadologyplus.com
Zach @thrustwr.bsky.social Former NavalNews & USNINews writer, Track Fuser, R-1/P-1 Budget Reader.
For defense-related stuff
Site: https://defensearchives.com/news
Seva @seva.bsky.social book: http://amzn.to/2oRD2yG. substack: https://hegemon.substack.com/
Dr. Raymond Kuo | 郭泓均 @kuorum.bsky.social Expert on international order and Asian security. VP of Research, Chicago Council on Global Affairs 🇹🇼🇺🇸
Website: https://www.raymondkuo.com/
"Online Rent-a-Sage" Bret Devereaux @bretdevereaux.bsky.social Ancient & military historian specializing in the Roman economy and military. PhD from UNC History. More impressive credential is that I have beaten both Dark Souls and Elden Ring.
Blogs at acoup.blog
Jaime Blasco @jaimeblascob.bsky.social Cofounder and CTO at Nudge Security. Ex-AlienVault. Talking about AI, Threat Intel, SaaS security
ChrisRohlf @chrisrohlf.bsky.social 🇺🇸 Waging algorithmic warfare since 2003. Non-Resident Research Fellow CSET Georgetown CyberAI
Buckingham Centre for Security & Intelligence Studies. @bucsisintel.bsky.social BUCSIS offers a range of security and intelligence programmes - taught & online including research degrees. #HUMINT #CovertAction. https://www.buckingham.ac.uk/research/bucsis
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
MalwareHunterTeam @malwrhunterteam.bsky.social https://x.com/malwrhunterteam | https://id-ransomware.malwarehunterteam.com/
James Shires @jamesshires.bsky.social Co-Director, Virtual Routes (virtual-routes.org)
Managing Editor, Binding Hook (bindinghook.com)
Author of The Politics of Cybersecurity in the Middle East
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)
Amy Ertan @amyertan.bsky.social Cyber defence policy @NATO, views my own. Infosec PhD and curious researcher. Former @belfercenter and NATO CCDCOE.
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.
Nicholas Weaver @ncweaver.skerry-tech.com Researcher, Computer Security @ ICSI
Chief Mad Scientist @ Skerry Technologies
Putting the Science in "Mad Science"
Digital, Explainable, and (usually) Adversarial Systems
Looking for employment: CV is here https://skerry-tech.com/cv.html
he/him
Accidental CISO @accidentalciso.net I accidentally became the CISO. I didn't want this job, but the job chose me. I'm scared, and I want to go home.
https://www.accidentalciso.net
Gabriel @morecoffeeplz.bsky.social Distinguished AI Research Scientist at SentinelOne. Former OpenAI, Apple infosec. Lecturer at John’s Hopkins SAIS Alperovitch Institute. Deceiver of hike length and difficulty.
Georgetown University Wargaming Society @guws.bsky.social The Georgetown University Wargaming Society (GUWS) provides a venue for current and aspiring wargamers to learn more about wargaming and build their professional networks. 🔗 www.guwargaming.org
Amitai Cohen🎗️🤟 @amitaico.bsky.social personal website @ cloudcurio.us ✦ researching @ Wiz Security (threats.wiz.io) 🐞 maintaining @ cloudvulndb.org 🎙️ podcasting @ cryingoutcloud.io 🗺️ pivoting @ Pivot Atlas (gopivot.ing)
Myrtus @malwareindepth.com Malware Researcher | Developer | @Cryptolaemus1
| @NVIDIA
Will happily talk about malware with anyone.
ian dupont @comedian.bsky.social Vulnerability Researcher @ Margin Research | Adjunct Professor @ NYU
Scott J Roberts @sroberts.io Cyber Threat, NatSec, Analytic Tradecraft | Instructor of Cybersecurity @ USU Data Analytics & Information Systems | Masters Student @ USU Center for Anticipatory Intelligence | Developer, Analyst, Author
x0rz @x0rz.bsky.social Cybersecurity & Threat Intelligence. Knowledge is power, France is bacon 🥓
Cris Brafman Kittner @criskittner.bsky.social military strategy, geopolitical analysis, CTI, avid photographer
ae @aelkus.bsky.social "A complex decision is like a great river, drawing from its many tributaries the innumerable premises of which it is constituted." - HA Simon
https://adamelkus.com/ + also @ aelkus on twitter
all opinions my own but also your cat's
Ankit Panda @nktpnd.bsky.social Stanton Senior Fellow, Carnegie Endowment for International Peace; Author of ‘THE NEW NUCLEAR AGE’ (Polity) & ‘KIM JONG UN AND THE BOMB’ (Hurst/Oxford)
Subscribe to my newsletter (Nukesletter): https://panda.substack.com/
Sergey Radchenko @radchenko.bsky.social Historian of the Cold War and after. Wilson E. Schmidt Distinguished Professor, Henry A. Kissinger Center for Global Affairs, Johns Hopkins School for Advanced International Studies. The author of “To Run the World.”
Hans Kristensen @nukestrat.bsky.social Director, Nuclear Information Project, Federation of American Scientists. Tracking nuclear arsenals, co-author of Nuclear Notebook, SIPRI Yearbook. Opinions my own.
Website: https://fas.org/initiative/nuclear-information-project/
Joseph Dempsey @josephhdempsey.bsky.social Research Associate for Defence & Military Analysis,
The International Institute for Strategic Studies
Martin Wendiggensen @machinavelli.com PhD candidate @ JHU Alperovitch Institute ; AI Research Scientist @ Dreadnode
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.
Tom Cross 🇨🇦🇺🇸 @decius.bsky.social Republics are systems that require people to compromise with each-other.
Space Rogue @spacerog.bsky.social I fight for the user. | L0pht Heavy Industries - ATStake - Whacked Mac Archives - Hacker News Network - Cyber Squirrel 1 | Semgrep
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
Bad APT Advice @badaptadvice.bsky.social Phone it in
JP Castellanos @dragonkin37.bsky.social Fmr DoD CND Threat Hunter, Director of Cyber Threat Intel
@Binary_Defense, Gamer, Geek, Weeb, & Geopolitics opinions are my own. #WeAreNAFO #FUZZYSNUGGLYDUCK
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
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
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
@mikko @mikko.bsky.social Fighting malicious use of technology.
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 ✨🌈🦄
Bill Marczak @billmarczak.org senior researcher at @citizenlab.ca
GreyNoise @greynoise.io GreyNoise analyzes Internet background noise. Use GreyNoise to remove pointless security alerts, find compromised devices, or identify emerging threats.
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
HD Moore @hdm.io runZero & Metasploit
Nate Beach-Westmoreland @natebeachw.bsky.social Cyber threat analyst focused on state-aligned adversaries. Opinions are my own, not my employer's. #threatintel #infosec #osint
The Banshee Queen 👑 @cyberoverdrive.bsky.social #threatintel @Recorded Future | Formerly @PwC GTI | Malware & infrastructure analysis with a side of cyberpunk. 🌃🌌 She/her, support 🏳️🌈🏳️⚧️✨
Wim Zwijnenburg @wammezz.bsky.social Environmental open-source investigations, tracking drone warfare, research based advocacy for PAX, contributer Bellingcat.
🇵🇸Martin “Doomsday” Pfeiffer🖖🏳️🌈 @nuclearanthro.bsky.social Anthro PhD Candidate.
nukes, cats, semiotics, FOIA, existential threats, heritage, nationalism, secrecy, etc.
QUEER
RT/Fave/etc ≠agree
he/him
http://patreon.com/nuclearanthro
http://paypal.me/nuclearanthro
https://osf.io/46sfd/
George William Herbert @georgewherbert.bsky.social IT/Cloud/SRE/PE, rockets & missiles, nukes not going bang, space, CS, ships. YIMBY & amateur transit geek. Part time adjunct @ miis.edu teaching Missiles & Missile Defense. I speak for myself only not $DAYJOB. V95.45XA I do #OSINT against nuclear missiles.
Sam Lair @slair.bsky.social Fellow at FPRI | MIIS NPTS '24 | RTs/views my own etc. Also @sam_lair on Twitter
Decker Eveleth @dexeve.bsky.social PRC and DPRK strategic forces analyst with CNA. BA Reed College, MA Middlebury Institute. NSF GRFP. 
Dr. Jacquelyn Schneider @jackieschneider.bsky.social Hoover Fellow, Director Wargaming and Crisis Simulation Initiative, Stanford University. Research on international security, emerging technology, wargames. Views are my own. 
Aaron Stein @aaronstein1.bsky.social President/CEO @fpri.bsky.social; Podcast w/ blogfather @armscontrolwonk.bsky.social; Recent Substacker; Author: US War Against ISIS. Views are all my own
Eli Sugarman @elisugarman.bsky.social Personal account. Trust and safety/philanthropy/cyber/tech policy. All views are my own and not those of my employer. Following and re-blueskying(?) =/= endorsement. 
Alexandra Paulus @alexandrapaulus.bsky.social Researcher for cybersecurity + (defense) tech @swp-berlin.org.
Co-Host Cybernation Podcast.
Currently:
- Harnessing biotechnology for national security
- Holding software vendors accountable for insecure software
- mitigating Europe's US tech dependencies
Alex Rudolph @cyberincontext.ca I research Canadian cyber defence policy, focusing on CAFCYBERCOM.
Carleton University PhD(ABD): State behaviour in cyber conflict. (Cyber force structure & doctrine)
CGAI & NAADSN Fellow. Cyber Yeoman.
I run Canadian Cyber in Context: cyberincontext.ca
Gabriella "Biella" Coleman @biella.bsky.social Professor of Anthropology @Harvard, Hacker Studies & More https://gabriellacoleman.org/
Jamie MacColl @jamiemaccoll.bsky.social Senior Research Fellow @rusi.bsky.social | Senior Research Associate @virtualroutes.bsky.social | Usually researching ransomware and cybercrime | Sometime indie landfill guitarist
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
Brody @brody-n77.bsky.social Cybersecurity, Battletech, and Sci-Fi.
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
Richard Johnson @richinseattle.bsky.social Fuzzing; Vulnerability Research;
Deep Learning; Reverse Engineering
Training & Publications @ http://fuzzing.io
Hacking the planet since 1995
Undercurrents.io BOFH
I'll stop the world and melt with you
The Society for Intelligence History @socintelhist.bsky.social 
Ronan Mainprize @ronanmainprize.bsky.social Ax:son Johnson Postdoctoral Fellow, Center for Statecraft and Strategic Communication
Research on intelligence, statecraft, and strategy • Writing a book on Lyndon Johnson, the CIA, and the Global Cold War • University of Warwick PhD
Michael @matonis.bsky.social Born to Lose. Live to Win.
Digital Monet @artaggi.bsky.social Binary and art recovery specialist. Aka “The White Glove”
Steve YARA Synapse Miller @stvemillertime.bsky.social threat intelligence @google
writing & sharing on adversary tradecraft, malware, threat detection, ics/ot + cyber physical intel, and of course all things #yara
Nicole Hoffman @threathuntergirl.bsky.social Friendly Neighborhood CTI Analyst | Children’s Book Author | Lego builder | Gamer | She/Her
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
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
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
Katie Nickels @likethecoins.bsky.social 
Jamie Collier @collierjam.bsky.social Cyber threat connoisseur at Google. Senior Research Associate at Virtual Routes / Associate Fellow at RUSI. 
Aaron Gersztoff @agerszto.bsky.social Advanced Threats @ Yahoo. All things security related. And the Mets.
H I Sutton @covertshores.bsky.social Independent Defense Analysis, Unconventional Naval Warfare, author, submarines, #OSINT, illustrations. Mostly typos
http://www.hisutton.com/
wendy knox everette @wendyck.bsky.social Startup CISO. BSidesLV Lockpick. Hacker lawyer. Amzn & Google alum, USCG wife, Wellesley, GMU Law. IAAL but IANYL.
lcamtuf @lcamtuf.coredump.cx Blog: https://blog.coredump.cx/archive
Homepage: https://lcamtuf.coredump.cx
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
PIVOTcon @pivotcon.bsky.social Threat Research Conference in Malaga, Spain, 6-8 May 2026
#StayTuned #ComingSoon #PIVOTcon #PIVOTcon26
https://pivotcon.org
Joe Devanny @joedevanny.bsky.social Senior Lecturer | National Security & Cyber | Department of War Studies | King’s College London | All views mine, etc.
Page Fortna @pagefortna.bsky.social IR prof (security, civil conflict, peacekeeping, terrorism, climate change), bicoastally migratory (PDX-NYC), dog lover, horse lover, mediocre knitter, avid composter. 
Paul D. Williams @pdwilliamsgwu.bsky.social Professor of International Affairs.