Phrack Zine @phrack.org since 1985
https://phrack.org
N̶͉̙̫E̶͎͉͖L̶͎͔L̶̡̪A̶̞̻͕ @n3ll41.bsky.social IT Fetischist mit einer Affinität für Schokobons | Cyber Security|#OSINT
https://linktr.ee/Nella_allami
Dirk-jan @dirkjanm.io Hacker at outsidersecurity.nl. Researches Entra ID, AD and occasionally Windows security. I write open source security tools and do blogs/talks to educate others on these topics. Blog: dirkjanm.io
OSINT Switzerland @osintswitzerland.bsky.social An association for experts, practitioners, and learners with the shared goal of developing and expanding their knowledge of open-source intelligence techniques.
https://osintswitzerland.ch/
Ars Technica @arstechnica.com Original news, reviews, analysis of tech trends, and expert advice on the most fundamental aspects of tech.
Orange Tsai @orange.tw This is 🍊
d4d @zakfedotkin.bsky.social Zak Fedotkin
All thought are mine and mine alone
Synacktiv @synacktiv.com Offensive security company. Dojo of many ninjas. Red teaming, reverse engineering, vuln research, dev of security tools and incident response.
CaidoIO @caido.io We help security professionals and enthusiasts audit web applications with efficiency and ease
https://caido.io
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
OWASP Juice Shop @owasp-juice.shop Probably the most modern and sophisticated insecure web application. Only we offer a 100% @owasp.org Top Ten incompliance guarantee! Skeets by @bkimminich.bsky.social
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
Compass Security @compass-security.com Penetration Testing, Red Teaming, Incident Response, Managed Detection, Digital Forensics, Security Training, Managed Bug Bounty, Cyber Training Range
BSides London @bsideslondon.bsky.social 📅 13 Dec 2025 | 📍 Novotel London West
Grassroots-driven security conference.
Built by the local InfoSec community, for the community.
Web: https://BSides.London
X/Twitter: https://x.com/BSidesLondon
#BSidesLDN2025
radio FM4 @fm4.orf.at You're at home, baby! fm4.orf.at
OWASP Germany Chapter :verified: @owasp-de.infosec.exchange.ap.brid.gy Account from OWASP Germany.
Toots in DE/EN
[bridged from https://infosec.exchange/@owasp_de on the fediverse by https://fed.brid.gy/ ]
MITRE ATT&CK @attack.mitre.org MITRE ATT&CK® - A knowledge base for describing the behavior of adversaries. Replying/Following/Reposting ≠ endorsement.
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
Violet Blue® @violetblue.bsky.social Awarded author, journalist: cybersecurity, privacy, Covid. WIRED, PopSci, Spinoff, Engadget, FT, IFJ. Visiting Scholar at Stout Research Centre, NZ. Black Hat keynote. S/her.
Bio: about.me/violetblue
More: linktr.ee/viblue
News: patreon.com/violetblue
spencer @bsky.ethicalthreat.com 🛠️ Former Sysadmin, now Pentester | Microsoft MVP | Helping IT teams make their environment harder to attack
Pentesting -> SecurIT360
Podcast -> CyberThreatPOV
Active Directory Security Resources for IT Admins 👇
https://go.spenceralessi.com/adsecurity
Piratenpartei Saarland @piratensaarland.bsky.social Für eine liberalere, sozialere, humanistischere, modernere, gerechtere und smartere Gesellschaft.
Impressum: https://piraten.saarland/Impressum/
Nick Dunn @n1ckdunn.bsky.social Hacking and offensive security. Opinions on hacking/offensive security, technology, science and sci-fi. Lover of really new technology and really old technology.
T1D.
Views are mine but may coincide with yours.
internet freds 🦇☠️💾✨️ @esquiring.bsky.social 21st century digital attorney. cybersecurity & data counsel, privacy & compliance, FOSS, sometimes litigation; IAALBNTTOLAACNYL (I am a lawyer but not that type of lawyer and almost certainly not your lawyer)
~~☆~~
CyberPunkJake @cyberpunkjake.lowlife.tech Low Life High Tech - https://lowlife.tech
✨Member of the ORG supporter Council.
✨Co-Founder of DC44121.
✨Organiser for ORG Birmingham.
✨Mentor at DojoCyber.
Sam Curry @zlz.bsky.social 
Katie Paxton-Fear @insider.phd Dr, apparently. Security Adovcate @semgrep & Hacker. #BugBounty hunter & #infosec YouTuber. APIs & Interlinked OffSec, PhD in AI+Sec @hacknotcrime. she/her
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 ✨🌈🦄
pwneip @pwneip.bsky.social Principal RTO @F500, SANS Instructor & #SEC565 Red Team Ops Author, Red Team Village lead, former Bishop Fox, US Air Force. Tweets are my own, memes are stolen
vortex @vortex.au I do offensive security things on the internet
renniepak @handle.invalid Self-XSS connoisseur. Elite Hacker. MVH H11337UPBash. One-Percent Man. Creator of CSPBypass.com. (he/him)
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
hakluke @hakluke.com Dad, hacker, solo founder of haksec.com and hackercontent.com.
Gynvael Coldwind @gynvael.bsky.social Security researcher/programmer ⁂ Managing director @ HexArcana ⁂ @DragonSectorCTF founder ⁂ he/him
Alethe @alethe.bsky.social ‘Uh-Lee-th’ | Bishop Fox 🦊 Red Team | DEF CON Goon & Black Badge Hall of Fame | DEF CON Social Engineering CTF Winner 2019 | Physical Pentester | IVR Pentester | IR Tabletop King 👑
Safa 🇿🇦 in NorCal 🇺🇸 - Fish 🐠 Nerd - Jeep Girl
James Kettle @jameskettle.com Director of Research at @portswigger.net
Also known as albinowax
Portfolio: https://jameskettle.com/
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
Phillip Wylie @phillipwylie.bsky.social Offensive Security Professional | Phillip Wylie Show Podcast Host | The Pentester Blueprint coauthor | TribeOfHackers Red Team | https://linktr.ee/phillipwylie
UK_Daniel_Card @mrr3b00t.bsky.social 
Kevin Beaumont @doublepulsar.com cybersecurity weather man. scanning the horizons for cloudy cyber. Expert at nothing except computer rubbish. Anti-ransomware since 2015.
Deviant Ollam ツ @deviantollam.bsky.social Philadelphian in Cascadia. Vociferous champion for Oxford commas, two spaces after a period, and ellipses. I break into buildings. 🔓
"Even if the world were ending tomorrow, I would still plant a tree." 🌲
(he/they)
Der Postillon 📯 @der-postillon.com Ehrliche Nachrichten - unabhängig, schnell, seit 1845
@halvarflake.bsky.social @halvarflake.bsky.social 
Koto @kkotowicz.bsky.social Security ninja wannabe / board game geek / photon catcher
Johan Carlsson @joaxcar.bsky.social Full time bug bounty hunter. Look for ”joaxcar” on other platforms
John Hammond @johnhammond.bsky.social Hacker. Friend. Cybersecurity Researcher at Huntress.
DER STANDARD @derstandard.at Offizieller Account der österreichischen Tageszeitung DER STANDARD. https://derstandard.at
linuzifer @linuzifer.bsky.social Ein Teil von jener Kraft, die stets das Böse will und stets das Gute schafft.
@linuzifer@23.social
http://linus-neumann.de
Rachel Tobac @racheltobac.bsky.social Hacker & CEO @SocialProofSec security awareness/social engineering training, videos, talks | 3X @DEFCON🥈 | Ex Chair @WISPorg | Ex @CISAgov Technical Advisory Council under Director Jen Easterly
shenetworks @shenet.works Networking • Hacking • Hacking Networks (she/her)
shenet.works
Elliot Killick @elliotkillick.bsky.social Security engineer & researcher
Lutz van der Horst @lutzvanderhorst.bsky.social ***Offizieller Account***
Newsfeed-Bot 🇦🇹 @orfnewsbot.bsky.social Experimenteller, inoffizieller (!) Bot, der euch die Nachrichten des RSS-Feeds news.orf.at hier frisch serviert. Die Post-Texte sind KI-Zusammenfassungen der Artikel. Alle Inhalte auf den verlinkten Seiten © 2025 ORF Online und Teletext GmbH & Co KG.
OWASP® Foundation @owasp.org We improve the security of apps with community-led open source projects, 260 local chapters, and tens of thousands of members worldwide. Famous for OWASP Top 10
HackTheBox @hackthebox.bsky.social 
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
Web Security Academy @websecacademy.bsky.social Free web security training from PortSwigger.
4n6lady @4n6lady.bsky.social 
PortSwigger Research @portswiggerres.bsky.social Web security research from the team at PortSwigger.
PortSwigger @portswigger.net We are a leading provider of software and learning on web security. We make Burp Suite and the Web Security Academy.
Cyrill @bcyrill.bsky.social 
Jan-Tilo Kirchhoff @jatiki.bsky.social 
Burp Suite @burpsuite.bsky.social Burp Suite is the leading software for web security testing.
azet @azet.org «slacker by trade, hacker by mindset, phreak by nature»
azet.org ⋮ distributed systems, security/resilience, applied cryptography & anarchism. HPC. audio. cave & technical diving…
» twi𝕏ter –• @a_z_e_t
» work ——• resilient.systems
Ⓐut★n⊕m⊜us Σys⚑∄m
@albinowax.bsky.social @albinowax.bsky.social 
Freddy @freddyb.bsky.social manager/security things for Firefox. love my family, my bike and reading books.
You can also find me on Mastodon as @freddy@security.plumbing, which I consider my primary account.
Homepage: https://frederikbraun.de/
Lilith Wittmann @lilithwittmann.bsky.social Journalistin. Krawallinfluencerin.
https://links.lilithwittmann.de
Nicolas Grégoire @agarri.fr Web hacker 😈
Burp Suite Pro trainer 👨🏫
Maintainer of @mastering-burp.agarri.fr 🛠️
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)
cybrz @cybrz.bsky.social Master of Disaster @compass-security.com 🔥 for all sorts crises, scada, chunk hacking, electronics, cryptography and cyber all the things.
Sofia Santos @gralhix.bsky.social 🇵🇹 Senior OSINT Analyst & Lead Investigator ~ Addicted to finding stuff & explaining things ~ Occasionally funny ~ https://gralhix.com & http://youtube.com/@gralhix
White Rabbit @danistoffers.bsky.social IT-Security | IT-Forensics | Art | Buddhism
Security Analyst
Manuel 'HonkHase' Atug @honkhase.de 20yrs Sec @CCC, @GeraffelV @cbase @loadev @AG_KRITIS #hacking #Ethik #KRITIS #Cyberresilienz, working at @HiSolutions http://Threema.id/X9H873XJ
Mastodon: https://chaos.social/@HonkHase
LinkedIn: www.linkedin.com/in/manuel-honkhase-atug-820b27241
jiska @naehrdine.bsky.social ɿɘɘniϱnɘ ɘƨɿɘvɘɿ
🎦 youtube.com/@jiskac
📝 naehrdine.blogspot.com
🐥 twitter.com/naehrdine
🎓 hpi.de/classen
📱 reversing.training
Nicolò Fornari @rationalpsyche.bsky.social Penetration Tester. Art passionate. Friends call me "grandpa".
Tib3rius @tib3rius.bsky.social Web App (mostly) Hacker | Cybersecurity Educator | Content Creator | Ex-Brit | Links: http://linktr.ee/tib3rius (he/him) 🇺🇸 A mostly unserious person. @therealc3rul34n.bsky.social is bae 🥰
Tilo Jung @tilojung.bsky.social Belangloser Videojournalist & Seltsamfrager | Creator of Jung & Naiv
netzpolitik.org @netzpolitik.org Offizieller Account von netzpolitik.org, dem Medium für digitale Freiheitsrechte. Anfragen bitte per E-Mail an kontakt@netzpolitik.org.
@yvesbieri.bsky.social @yvesbieri.bsky.social 
Runa Sandvik @runasand.bsky.social Founder of Granitt, securing journalists and at-risk people around the world. 
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
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
Kuba Gretzky @mrgretzky.breakdev.org Offensive security tools developer. Malware developer, hobby music producer, bedroom DJ & ex-MMO game hacker. Creator of Evilginx / Bartender @ BREAKDEV RED.
Gareth Heyes @garethheyes.co.uk Web security researcher at PortSwigger. Author of JavaScript for Hackers, Shazzer and Hackvertor.
https://javascriptforhackers.co.uk/
https://garethheyes.co.uk/
@fransrosen.bsky.social @fransrosen.bsky.social 
TomNomNom @tomnomnom.com Computer booper and food enthusiast. He/him.
Ryan Basden @ryanbasden.com Writer @ ryanbasden.com // Hacker @ empiricsecurity.com
#1 photography account about hacking.
Previously:
@bishopfox.bsky.social Red Team
@risk3sixty Pentesting Practice Lead
BSidesVienna.at @bsidesvienna.at BSides in Vienna… why yes please! ~~
bsidesvienna@infosec.exchange
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app