Merlin Chlosta @merlinchlosta.bsky.social IT Security PhD from RUB. Telco / mobile networks. ex-CISPA.
FX of Phenoelit @fxv2.bsky.social Hacker reincarnation (Lifetime Achievement Pwnie Award 2017 old school certified)
Michael Wiesner @miat.me #Pentest|ing #CISO doing #DFIR | #AG_KRITIS #Geraffel #cbase #CCC (de|en)
Pass the SALT Conference @passthesaltcon.bsky.social - WHAT Conference dedicated to #Security and #FreeSoftware
- WHERE Lille, north of France
- LANG English spoken event
- WHEN June, 30 -> July, 2 2026
- COST the conference is entirely FREE: talks, workshops and social event.
#pts26
grsecurity @grsecurity.bsky.social Foundational security for the Linux kernel. Solving the most difficult memory unsafety problems. Created by @opensrcsec
Εukasz @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 β¨ππ¦
LiveOverflow π΄ @liveoverflow.bsky.social wannabe hacker... he/him
π± grow your hacking skills https://hextree.io
Adrian Dabrowski @atrox.at Security, privacy, cellular, living in clouds; night-owl; PostDoc CISPA; former UCI, SBA, TU Wien, iSeclab. My own opinions. May contain sarcasm.
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
Jeff Moss @thedarktangent.bsky.social thedarktangent@defcon.social
DEF CON @defcon.bsky.social The worldβs premier hacker conference. Serving the global hacker community since 1993.
Defcon.org
Forum.defcon.org
Defcon.social
TracketPacer @tracketpacer.com πrockit network engineer
π©πΌβπ»ethernet fangirl
π weird use cases & silly tech!
π tracket@tracketpacer.com
π tracketpacer.com
daniel:// stenberg:// @daniel.haxx.se I write curl. I don't know anything. I am @bagder@mastodon.social
My mastodon posts are mirrored to Blusky here: https://bsky.app/profile/bagder.mastodon.social.ap.brid.gy
Weekly email at https://lists.haxx.se/listinfo/daniel
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
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.
Emily Stark @estark.bsky.social Encryption, HTTPS, certificates, web security, security UX, software engineering and management, TMI about parenting. Opinions are my own.
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.
daniel:// stenberg:// @bagder.mastodon.social.ap.brid.gy I write curl. I don't know anything.
π bridged from β https://mastodon.social/@bagder, follow @ap.brid.gy to interact
CCC @ccc.de Der Chaos Computer Club ist eine galaktische Gemeinschaft von Lebewesen fΓΌr Informationsfreiheit und TechnikfolgenabschΓ€tzung. https://ccc.de
RE//verse @re-verse.io https://re-verse.io/ reverse engineering conference
Travis Goodspeed @travisgoodspeed.bsky.social Author of books and tools for reverse engineering. Studebaker driver, but an awful mechanic. Home chip decapsulation.
Currently writing a new assembler, to be released in February.
leyrer @leyrer.bsky.social β ππ©πͺπ΄ πΆπ΄π¦π³ πͺπ΄ π΄πΆπ΄π±π¦π€π΅π¦π₯ π°π§ π£π¦πͺπ―π¨ π±π’π³π΅ π°π§ π’ π΅π¦π³π³π°π³πͺπ΄π΅ π°π³π¨π’π―πͺπ»π’π΅πͺπ°π― π€π’πππ¦π₯ ππ―π΅πͺπ§π’. πππ¦π’π΄π¦ π³π¦π±π°π³π΅ π’π―πΊ π΄πΆπ΄π±πͺπ€πͺπ°πΆπ΄ π£π¦π©π’π·πͺπ°π³.
Putting my stake into the ground. Find my content on Mastodon: https://chaos.social/@leyrer
David Oswald @sublevado.bsky.social Live as if today's yesterday was the day after yesterday's tomorrow.
Compiler Explorer @compiler-explorer.com A website for exploring the output of compilers. aka godbolt.org
Supports C, C++, Rust, Fortran, COBOL and many many more.
Support us at https://patreon.com/mattgodbolt 
Blackhoodie @blackhoodie.bsky.social Blackhoodie is a free, women-only reverse engineering workshop. Check our website for infos! #BHRE
Web: https://blackhoodie.re & Donate: https://donate.stripe.com/9AQaGq3Ho6084aAdQQ
LaurieWired @lauriewired.bsky.social researcher @google; serial complexity unpacker
ex @ msft & aerospace
Sebastian Dullien @sdullien.bsky.social Research Director Macroeconomic Policy Institute (IMK) and professor for International Economics at HTW Berlin - University of Applied Sciences. Father of 2.
Jeff Moss @thedarktangent.defcon.social.ap.brid.gy Founder of DEF CON & Black Hat. Maintainer of infocon.org.
Member of the UK Gov Cybersecurity Advisory Board & The Council on Foreign Relations.
Working to [β¦]
π bridged from β https://defcon.social/@thedarktangent, follow @ap.brid.gy to interact- W TROOPERS Conference @wearetroopers.bsky.social https://troopers.de/imprint/
v0ldemort @v0ldemort.bsky.social Vulnerability Engineer for FLARE @GoogleCloud πΎ CTFd with Kernel Sanders π© Windows, Web3, & Android pwn π¬ UF FICS Alum π InfoSec DJ πΏ opinions are my own
Michael Schwarz @misc0110.bsky.social InfoSec Faculty @ #CISPA. Side-channel attacks. Exploiting microarchitectures. Discovering CPU vulnerabilities.
Marcel BΓΆhme @mboehme.bsky.social Software Security @ MPI for Security and Privacy
PhD @NUS, Dipl.-Inf. @TUDresden
Research Group: http://mpi-softsec.github.io
Ben Stock @benstock.bsky.social Tenured Faculty @c-i-s-p-a.bsky.social Helmholtz Center for Information Security
Stefano Zanero @raistolo.bsky.social Tinkerer, security geek, recovering entrepreneur, full professor at www.polimi.it, frequent flyer, private pilot, and generic pundit. He/Him π³οΈβπβ©
For aviation follow me on Instagram, same id!
Colin O'Flynn - follow @oflynn.com main account @colinoflynn.bsky.social Changed to @oflynn.com instead
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
Marco Squarcina @minimalblue.bsky.social Senior Scientist @TU Wien / Web & Mobile Security / #drumandbass DJ
π© with @mhackeroni.bsky.social We_0wn_Y0u kukhofhackerei Team Austria
π https://minimalblue.com/
Kevin Borgolte @kevin.borgolte.me Professor in CS at Ruhr University Bochum, DE. Part of HGI Bochum and DFG Excellence Cluster CASA: Cyber Security in the Age of Large-Scale Adversaries. Software and Internet security & privacy. Mastodon: @kevin@borgolte.me. Sometimes going by cao.
Alex Gantman @againsthimself.bsky.social 
Mathy Vanhoef @vanhoefm.bsky.social Prof. @KU_Leuven | Research in Network & Software Security | Known for WPA2 KRACK attack, Dragonblood, and FragAttacks | Open to consultancy | Ex-Postdoc NYU
Andreas Zeller @andreaszeller.bsky.social Software researcher at https://cispa.de, working on #Fandango, #S3, #FuzzingBook, #DebuggingBook. Testing, debugging, analyzing, and protecting software for a better world. Find me at https://andreas-zeller.info/
Stephen Checkoway @stevecheckoway.bsky.social Associate Professor of Computer Science at Oberlin College. No kings, no nazis, no war.
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.
Michael Weissbacher @mweissbacher.bsky.social Securing Block (Square) infrastructure. Previously security research at Northeastern University. Internationally acclaimed Schnitzel expert π¦πΉ mweissbacher.com NYC π½
Adriana Porter Felt @apf.bsky.social I like writing silly skeets, but that doesn't pay so I also make Google Chrome. mamΓ‘, Eng Director, volunteer at Second Harvest. πΊπ²π¨π·
Twitter: @__apf__
Konrad Rieck π @rieck.mlsec.org Machine Learning and Security,
Professor of Computer Science at TU Berlin,
Sven Bugiel @svebug.bsky.social Tenured Faculty at the CISPA Helmholtz Center for Information Security | https://svenbugiel.de/
Matteo Maffei @matteomaffei.bsky.social Professor at TU Wien, coordinator TU Wien Cybersecurity Center, SecInt Doctoral School, SpyCoDe SFB. ERC grant holder.- S saschafahl @saschafahl.bsky.social Faculty@CISPA; Empirical Security
Stijn Volckaert @stijn-volckaert.bsky.social Associate Professor @KU_Leuven @DistriNet. Working on Systems Security. Anti-Cheat Developer. Ethical Hacker. Maintainer of Unreal Tournament for @OldUnreal.
Anders Fogh @andersfogh28.bsky.social 
Alexandra Sandulescu @antperson.bsky.social Security @ Google - cpu bugz
Collin Mulliner @collinrm.bsky.social Engineer | Security Researcher | Recovering Academic | KD2WON
https://mulliner.org/collin
Marco Balduzzi @embyte.bsky.social Technical Research Lead | President and co-founder @bitm_hacklab @nohatcon | Co-founder @signalcapture | Tweets are my own
Sebastian Neuner @sebastian9er.bsky.social Staff Security Engineer at Google, trying to secure Alphabet's non-Google techstacks at scale. Opinions are my own.
Michal Melewski @carste1n.bsky.social Security Engineer @ Cloudflare,
ex-Google ISE,
I use bad software and bad machines for the wrong things.
My writing: https://carstein.github.io
Fabian Rauscher @responsible.fyi Security Researcher | PhD Candidate with CoreSec at @tugraz.bsky.social | Microarchitectural Attacks | OS/HV Development | https://responsible.fyi
SPyCoDe @spycode.bsky.social The SPyCoDe special research programme takes a comprehensive approach to security and privacy of IT architectures by focussing on cross-layer interfaces.
CySec @cysecwien.bsky.social Cybersecurity Center TU Wien
Natalie Silvanovich @natashenka.bsky.social Google Project Zero
Sonstwer @sonstwer.bsky.social chaos.social/@Sonstwer
Datenschutzaktivist aus Wien mit Vorlieben fΓΌr #FOIA Anfragen, #Ukulele Musik und #Singen. Mitglied des #Metalab Wien
Manuel Wiesinger @mmap.at Operating System Engineer @ https://unikraft.io
PhD candidate @ https://www.vusec.net
Daniel Weber @d-we.bsky.social Microarchitectural Security | PhD Student @ #CISPA
https://d-we.me
Marco Guarnieri @mguarnieri.bsky.social Associate Professor @ IMDEA Software Institute. Doing research on security at the hardware/software interface. Find me also at @mguarnieri@infosec.exchange
Aurore Fass @aurore-fass.bsky.social Tenured Researcher @Inria
USENIX Security Artifact Evaluation Co-Chair 2025 & 2026
Web Security & Privacy: JavaScript (in)security, browser extensions
https://aurore54f.github.io
the grugq @thegrugq.bsky.social 
JP Aumasson @aumasson.jp https://aumasson.jp
cofounder & CSO @ taurushq.com
cryptographer (BLAKE2, BLAKE3, SipHash)
author of Serious Cryptography https://nostarch.com/serious-cryptography-2nd-edition and other books
Signal: jpa.01
@halvarflake.bsky.social @halvarflake.bsky.social 
Filippo Valsorda @filippo.abyssdomain.expert @geomys.org founder / RC F'13, F2'17
Cryptogopher / Go cryptography maintainer
https://filippo.io / https://github.com/FiloSottile
https://mkcert.dev / https://age-encryption.org
https://sunlight.dev / https://filippo.io/newsletter
Bellingcat @bellingcat.com Bellingcat is a global collective uncovering facts to hold power to account. Our work is independent. Our methods are public. Our community is global.
Want to support our charity? bellingcat.com/donate
Matthew Green @matthewdgreen.bsky.social I teach cryptography at Johns Hopkins. https://blog.cryptographyengineering.com
Merve Sahin @mervesahin.bsky.social mervesah.in
@gannimo.bsky.social @gannimo.bsky.social 
Geoffroy Couprie @geoffroycouprie.com Messing with Rust and cryptography
@pinkflawd.bsky.social @pinkflawd.bsky.social 
stacksmashing @stacksmashing.bsky.social Security researcher with a focus on hardware & firmware. I occasionally publish stuff on YouTube. Co-founder of
hextree.io. Contact: contact@stacksmashing.net
defendtheworld.bsky.social @defendtheworld.bsky.social Alex Radocea. Building better routers at www.supernetworks.org
Miro Haller @mirohaller.bsky.social PhD student @ UCSD working on applied cryptography
https://mirohaller.com
Multi-hyphenate @ehershey.bsky.social 
Catalin Cimpanu @campuscodi.risky.biz β Cybersecurity reporter
β
Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
@lujobauer.bsky.social @lujobauer.bsky.social 
@vehiclesec.bsky.social @vehiclesec.bsky.social 
Phong @np-tokumei.net I moved to https://www.linkedin.com/in/hoangnguyenphong
Assistant Professor @cs.ubc.caβ¬| Research on Network Security & Online Privacy
@sccs-uos.bsky.social @sccs-uos.bsky.social 
CISPA Helmholtz Center for Information Security @cispa.de Shape the future world.π
πCybersecurity I π«±π»βπ«²πΌPrivacy I π€Trustworthy AI
Privacy Policy and Legal Notice: https://cispa.de/en/linkinbio
DIMVA Conference @dimvaconf.bsky.social The 23rd Conference on Detection of Intrusions and Malware & Vulnerability Assessment (DIMVA '26)
π
July 1 to 3, 2026 at πChania, Greece π¬π·
Ange @angealbertini.bsky.social Reverse engineer, file formats expert.β¨Corkami, CPS2Shock, PoC||GTFO, Sha1tered, Magika...β¨Security engineer @ Google. He/him.
Lucian Cojocar @cojocar.com 
aurelsec @aurelsec.bsky.social Hackademic at S3@eurecom
Martina Lindorfer @lindorfer.in Associate Professor Security & Privacy @ TU Wien. Key Researcher @ SBA Research (she/her). Avid Snacker. Professional Traveller. Mainly Lurker.
π€ π¦π¦ππΆπ¦πΈπ§©βοΈπ§ββοΈ
Colin O'Flynn @oflynn.com Colin is a huge nerd. Hardware hacking, open-source hardware, electronics design, academic stuff, dog stuff in some order. Assistant Prof @ Dalhousie Uni, advisor/co-founder NewAE Technology Inc.
ClΓ©mentine Maurice @bloody-tangerine.bsky.social Researcher at CNRS. Feminist. I work on microarchitectural security.
https://cmaurice.fr
Daniel Gruss @gruss.cc Aka @lavados #InfoSec University Professor @ #TUGraz. #meltdown, #spectre, #rowhammer, cache attacks, sustainable security. Produced a side channel security sitcom. https://gruss.cc https://x.com/lavados https://infosec.exchange/@lavados
jiska @naehrdine.bsky.social ΙΏΙΙniΟ±nΙ ΙΖ¨ΙΏΙvΙΙΏ
π¦ youtube.com/@jiskac
π naehrdine.blogspot.com
π₯ twitter.com/naehrdine
π hpi.de/classen
π± reversing.training
Alyssa Milburn @noopwafel.bsky.social I hate computers (but also enjoy their cursed natures) and love people. (You can find my occasional posts over on Mastodon.)