RF Hackers Sanctuary @rfhackers.bsky.social The Radio Frequency Village Team from all your favorite hacker cons. Discord link on our website, https://rfhackers.com/.
Andrea Barisani @andreabarisani.bsky.social hacker | tamagopher | https://andrea.bio
Bianca 'BiaSciLab' Lewis @biascilab.bsky.social 18 Year old hacker 👩💻 Founder and CEO of Girls Who Hack 💜 International speaker 🔊 cDc Member 🐄
www.BiaSciLab.com
www.Spawn-Camp.com
www.GirlsWhoHack.com
www.SecureOpenVote.com
CoD_Segfault @se.gfau.lt It's me, from that other site. Hacking on whatever grabs my interest at the time.
Support my hacking habit at https://ko-fi.com/cod_segfault.
Nils Fleischhacker @cryptomaeher.bsky.social Cryptographer working on both applied and theoretical cryptography. Currently Assistant Professor for Cryptography at Ruhr University Bochum. Opinions probably someone else's. he/him
Hourly Cosmos @hourlycosmos.bsky.social Photo sharing bot for planetary and deep space images.
Run by @kevinmgill.bsky.social
Content providers added with permission.
WiGLE.net @wiglenet.bsky.social All the networks, found by everyone.
@cascremers.bsky.social @cascremers.bsky.social 
Frederic Jacobs @fredericjacobs.com www.fredericjacobs.com
https://ger.mx/A-RGsldmQt0iXfnzPgXNzLzA5_jvDbWHabqz1yJrt2ma#did:plc:oxwmqopgbm3driwzues7odpz
Li Chen @exocomics.com I like cats.
My third graphic novel Detective Beans and the Map of Mystery is available to pre-order now! https://detectivebeans.com
ETH CS Department @csateth.bsky.social Official Bluesky page of the Computer Science Department at ETH Zurich. Collected media and news from and about the department.
Sophie Schmieg @sophieschmieg.infosec.exchange.ap.brid.gy Leading cryptography (ISE Crypto) at Google.
Opinions my own.
Content usually badly explained mathematics
[bridged from https://infosec.exchange/@sophieschmieg on the fediverse by https://fed.brid.gy/ ]
Chris Wysopal @weld.bsky.social Gray haired gray hat. Co-founder Veracode. Former L0pht security researcher. Builds tools to find and fix vulnerabilities in code at scale.
Binary Golf Association @binary.golf Binary Golf Grand Prix ; Annual Small File Competition ; Less Is More ; #BGGP6 begins October 18th 2025, ends January 18th 2026;- N Nadia Heninger @nadiaheninger.bsky.social
PQC Suite B @pqcsuiteb.bsky.social https://github.com/PQC-Suite-B
Maria Corte-Real Santos @maria.isogeny.club Post-doc at ENS de Lyon https://www.mariascrs.com/
Interested in post-quantum cryptography and isogenies
Co-organiser of The Isogeny Club https://isogeny.club/
Opal @opalescentopal.bsky.social I do crochet stuff and sometimes math stuff. (she/her)
Jade @jade.packet.science they/she
PhD Student @cs.umass.edu
Privacy-Enhancing Technologies && Internet Censorship
Website: https://packet.science
Opinions expressed here do not reflect anyone but myself (and I change my mind often...)
Iceman @iceman1001.bsky.social RFID hacker, Proxmark, NFC & EMV | Magic moon beans | Four spaces instead of Tab | https://youtube.com/@iceman1001/
ComfyCon AU @comfyconau.bsky.social ComfyCon AU 2025
Arrigo Triulzi @cynicalsecurity.bsky.social IT Security, cynically aged. Maths. Some nukes. Longing for Symbolics and Connection Machines. Keeper of Ancient Computing Lore. Wassenaar intangible Ⓐ
Shen Comix @shenanigansen.bsky.social These comics are only visible to cool people!!
Support me: https://patreon.com/shencomix // Store: https://topa.to/shen
OpenSecurityTraining2 @opensectraining.bsky.social 501(c)(3) Nonprofit providing Open Source and Open Access computer security training material. #OST2 re-launched July 2021!
Adam Shostack :donor: :rebelverified: @adamshostack.infosec.exchange.ap.brid.gy Author, game designer, technologist, teacher.
Helped to create the CVE and many other things. Fixed autorun for XP. On Blackhat Review board.
Books […]
[bridged from https://infosec.exchange/@adamshostack on the fediverse by https://fed.brid.gy/ ]
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. 🏳️🌈
Izar Tarandach @threatmodeling.dev Threat model and prosper! 🖖
OWASP pytm Leader | OWASP Events Committee Chair (2024)
Natanael, Tech janitor @natanael.bsky.social A nerd who likes cryptography. A bit weird, a bit witty, a bit whimsical
Fediverse: @Natanael_L@mastodon.social
DM open. For E2EE IM: @Natanael_L:matrix.org
ccTLD: SE
Mod @ https://reddit.com/r/crypto for cryptography 
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)
Distributed Denial of Secrets @ddosecrets.org DDoSecrets is a 501c3 journalist non-profit devoted to publishing and archiving leaks and other data in the public interest.
DDoSecrets.org
LibraryOfLeaks.org
https://en.wikipedia.org/wiki/Distributed_Denial_of_Secrets
DonorBox.org/ddosecrets
Micah Lee @micahflee.com Doing what I can to keep activists, journalists, and researchers safe and productive — writing at https://micahflee.com — author of HACKS, LEAKS, AND REVELATIONS https://hacksandleaks.com — signal: micah.01
Veronica Kovah @veronicakovah.bsky.social Not a 0x41 and done kinda gal
@thecvefoundation.org @thecvefoundation.org 
Rob Joyce @rgblights.bsky.social Cyber guy. Former NSA cybersecurity director and chief of TAO. Lover of memes. Warning - occasional outrageous Christmas light content.
Kenny Paterson @kennyog.bsky.social Bit flipper
Adam Shostack @adamshostack.bsky.social Threat modeling. BH Review Board. Affiliate Professor, UW. Fixed autorun. Helped create CVE.
Not sure why we're building graphs on yet another (effectively) centralized system. https://infosec.exchange/@adamshostack
SensePost @sensepost.com Work like hell,
Share all you know,
Abide by your handshake,
Have fun. - Dan Geer
Dominic White @singe.bsky.social Hacker at Orange Cyberdefense's SensePost Team
https://hello.singe.za.net/
Compass Security @compass-security.com Penetration Testing, Red Teaming, Incident Response, Managed Detection, Digital Forensics, Security Training, Managed Bug Bounty, Cyber Training Range
Mänu @emanuelduss.ch IT security. Linux & network protocols. Pentesting web applications, networks & AD infrastructures. Mostly technical stuff here. https://emanuelduss.ch
Xeno Kovah @xenokovah.bsky.social Interested in reverse engineering, firmware, bluetooth, trusted computing, and training. Founder of OpenSecurityTraining2 https://ost2.fyi
Binni Shah @binitamshah.bsky.social Linux Evangelist, Malwares , Security Enthusiast, Investor, Contrarian , Neurology , Philanthropist , Reformist ,Sigma female
Work Chronicles @workchronicles.bsky.social Comics about work. Made with love and lots of coffee.
The Hacker's Choice (1995) @hackerschoice.bsky.social Security Research Group.
ZAP by Checkmarx @zaproxy.org The Worlds Most Popular Web App Scanner.
Synacktiv @synacktiv.com Offensive security company. Dojo of many ninjas. Red teaming, reverse engineering, vuln research, dev of security tools and incident response.
Retro Computers @retrocomps.bsky.social Semi-automated posting of old computers and videogames. Sometimes other bits of retro aesthetics and design. ~6-8 posts a day, ~24 posts on holidays.
⚠Outbound links tagged and monitored by Bluesky.
Robert Graham @erratarob.bsky.social @erratarob on the hellscape site
Security Cryptography Whatever @scwpod.bsky.social @durumcrustulum.com, @sockpuppet.org, @dadrian.io
“Freewheelin’ dynamic”.
https://securitycryptographywhatever.com
https://podcasts.apple.com/us/podcast/feed/id1578405214
RE//verse @re-verse.io https://re-verse.io/ reverse engineering conference
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/
Advanced Fuzzing League @aflplusplus.bsky.social We want to make fuzzing better and better
Follow for updates on AFL++ & LibAFL
tmp0ut @tmpout.sh ELF Research Group
@hasherezade.bsky.social @hasherezade.bsky.social Programmer, #malware analyst. Author of #PEbear, #PEsieve, #TinyTracer. Private account. All opinions expressed here are mine only (not of my employer etc) ; https://hasherezade.net
Christopher Patton @cjpatton.bsky.social cjpatton.net - opinions are my own
Uncle Joe @sydseter.com Co-leader OWASP Cornucopia. If you like what we do for open source, visit our code repository https://github.com/OWASP/cornucopia and give us a star ⭐
🌈 «Difference is of the essence of humanity» 🦄 – John Hume
#appsec #owasp #cornucopia #threatmodeling
Luca De Feo @bsky.defeo.lu Researcher in cryptography @ IBM Research, chief isogenista, SageMath developer, DevOps in my spare time. Opinions my own.
On Mastodon: @luca_defeo@ioc.exchange
COSIC @cosic.bsky.social COSIC provides a broad expertise in digital security and strives for innovative security solutions.
COSIC is headed by Bart Preneel.
https://www.esat.kuleuven.be/cosic/
Thomas Ptacek @sockpuppet.org Full of passionate intensity.
Soatok @soatok.bsky.social 30-something gay furry with an interest in cryptography and software security.
Mastodon: https://furry.engineer/@soatok
Blog: https://soatok.blog
🎨 https://mrjimmydafloof.bsky.social
depths of wikipedia @depthsofwikipedia.bsky.social hi i'm @annierau.bsky.social i love wikipedia! dm submissions if you want :-)
Breaking The Internet Podcast @breakingthepod.com A tech podcast by @endingwithali.com and @shenet.works
https://breakingthepod.com
Julian Loss @julianloss.bsky.social I’m a cryptographer working on digital signatures, consensus algorithms, and more. Professor for Computer Science at Ruhr University Bochum.- D Dan Boneh @danboneh.bsky.social Crypotgrapher
IACR Crypto @iacrcrypto.bsky.social Official account for the IACR Crypto conference https://crypto.iacr.org
Ian Miers @secparam.bsky.social UMD CS Prof. Security and applied cryptography. 
Philipp Jovanovic @philippjovanovic.bsky.social Professor in Information Security at UCL
Alumnus of EPFL and University of Passau
https://philippjovanovic.com/
Real World Crypto Symposium @rwc.iacr.org The official Real World Cryptography Bluesky feed. Follow us for news of upcoming events.
Giacomo Pope 🍄 @giac.bsky.social Isogenies, Cryptography and Goose Emojis🪿
FakeIacr @fakeiacr.bsky.social This is the official twitter account for the FakeIACR organization.
isis agora lovecruft (they/them) @isis.bsky.social anarchist; the bay area’s only hacker; once-upon-a-time theoretical physicist. i might be a cryptographer but i'm not your cryptographer.
helped build tor, signal, zcash, firefox, probably some other things folks use sometimes. 🏳️⚧️
Quanta Magazine @quantamagazine.org Illuminating math and science. Supported by the Simons Foundation. 2022 Pulitzer Prize in Explanatory Reporting. www.quantamagazine.org
𝙽𝙴𝚃𝚁𝙴𝚂𝙴𝙲 @netresec.com Experts in Network Forensics and Network Security Monitoring. Creators of #NetworkMiner, #PolarProxy, #FlowCarp, #CapLoader and RawCap.
Website: https://www.netresec.com/
Mastodon: @netresec@infosec.exchange
Taggart @taggart-tech.com @mttaggart@infosec.exchange. Displaced Philly boy. Executive Director of @ifin-intel.org. Threat hunter. Educator. Dad. General in the AI Resistance.
taggartinstitute.org
wtfbins.wtf
linktr.ee/mttaggart
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.
gab 🇺🇦🇵🇸 @gabagool.ing fka @gabbyroncone on twitter. mission tech lead for RU & Eastern European APT ops @Google. views expressed here are mine, not my employer’s. she/her.
MITRE ATT&CK @attack.mitre.org MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Reposting ≠ endorsement.
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
@hak5.bsky.social @hak5.bsky.social 
shenetworks @shenet.works Networking • Hacking • Hacking Networks (she/her)
shenet.works
MG @mg.lol 
netspooky @vacci.ne knuck if you buck
https://n0.lol
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
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
Naomi Wu 机械妖姬 @realsexycyborg.bsky.social China's #1 Tech & DIY YouTuber
Open Source, 3D Printing & Digital Fabrication, Automation, Infosec
1/18th synthetic
'It's all about merit until merit has tits'
Shenzhen, China
youtube.com/c/SexyCyborg
HollyGraceful @hollygraceful.bsky.social I climb stuff and I hack things.
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
Krijn Reijnders @krijn.isogeni.es Post-doc in post-quantum cryptography. Mostly isogenies nowadays. See krijnreijnders.com
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
Patrick Gray @patrick.risky.biz https://risky.biz/
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
Nigel Smart @smartcryptology.bsky.social Cryptographer- S @sempf.bsky.social @sempf.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
Ethan Heilman 😼 @ethanheilman.bsky.social Have hash function, will travel
⬡ Posts about cryptology, netsec, infosec, OpenID Connect
⬡ co-founded bastionzero.com
⬡ Works on OpenPubkey: https://github.com/openpubkey/openpubkey
⬡ Website is https://ethanheilman.com
Effin' Birds @effinbirds.com Daily comic by Aaron Reynolds that keeps on winning awards despite being nothing more than birds and curse words. Books, calendars and merch at effinbirds.com