Johannes Köpl @johanneskoepl.bsky.social Social Anthropologist, Business Economist, Consultant, Traveller and of course Feminist.
Posting my personal opinion here.
Mostly in German about politics and climate crisis, especially Austria and Argentina.
Chum1ng0 - Security Research @chum1ng0.bsky.social #Chile, Investigador Independiente cubro hacktivismo y filtraciones de datos en #LATAM y puedes encontrar mis noticias en mi newsletter: newschu.substack.com o en mi blog: https://www.security-chu.com
#infosec #cybersecurity #privacy
X:@chum1ng0
security-incidents.de @sec-incidents.bsky.social Impressum: https://www.security-incidents.de/impressum/
heise Security @heisec.bsky.social News und Geschichten des Security-Portals von heise online
Karen Ullrich (s/h) @karen-ullrich.bsky.social Research scientist at FAIR NY ❤️ LLMs + Information Theory. Previously, PhD at UoAmsterdam, intern at DeepMind + MSRC.
Binni Shah @binitamshah.bsky.social Linux Evangelist, Malwares , Security Enthusiast, Investor, Contrarian , Neurology , Philanthropist , Reformist ,Sigma female
Brian Krebs (parody) @briankrebs.bsky.social Did you think your little ass could hide from me? Don’t worry this username will be forwarded to my federal buddies. I smoke all sim swappers and put them in some packs! 💯💯💯
parody
BRute Logic @brutelogic.bsky.social #CyberSecurity #AI https://brutelogic.net/research
Erlend Oftedal @webtonull.bsky.social Security researcher at Crosspoint Labs. AppSec. Tweets are my own and do not express the opinion of my employer. OWASP. retire.js
Scott Piper @scottpiper.bsky.social Cloud security historian.
Developed http://flaws.cloud, CloudMapper, and Parliament.
Founding team for fwdcloudsec.org
Principal Cloud Security Researcher at Wiz.
Julien Vehent @jvehent.org Security engineer.
Amateur photographer.
Floridian Vermonter Frenchman.
Signal: @jvehent.37
gwillem @gwillem.bsky.social Amateur plumber and code monkey
Code plumber and amateur monkey
AWS Cloud Security Weekly @aws-cloudsec.bsky.social http://aws-cloudsec.com/about
Dominick Baier @leastprivilege.com Advisor & Board Member at Duende Software - @duendesoftware.com
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
Michal Špaček @spazef0rze.bsky.social In your web, securing your app. Hacker, webdev, speaker, engineer. Security shoptet.cz, ex-report-uri.com, ex-teenager. HTTPS = How To Transfer Private Sh💩. Also https://infosec.exchange/@spazef0rze
Jack Rhysider @jackrhysider.bsky.social Creator of Darknet Diaries.
Verification: https://twitter.com/JackRhysider/status/1675298532406984707
Xavier Mertens 🇧🇪 @eeksme.bsky.social A fork of https://twitter.com/xme
Lukas Weichselbaum @webappsec.dev Leading Google's web security team.
Passionate about web security and making secure-by-default web development the norm. Contributed to web platfom security features like CSP, Fetch Metadata, COOP and Trusted Types.
Aaron Parecki @aaronpk.com #OAuth #IndieWeb
Erich M. @harkank.bsky.social @harkank@chaos.social = 127.0.0.1
Dominique Righetto @righettod.eu 👨💻 AppSec enthusiast | 🐶 Addicted to Shetland Sheepdogs | 🌏 Open Source/AppSec/OWASP junkie | 🐝 OWASP Secure Headers Project Leader.
🚩 Opinions mentioned are mine.
Barbara Schachner @barschachner.bsky.social Director Product Security @Dynatrace. Previous Security Architect, Pentester and Red Team Lead. Tweets are my own.
Talking about security, leadership, politics and human rights. 
Nicolas Fränkel 🇪🇺🇺🇦🇬🇪 @frankel.ch 🧑💻 Developer and architect
🥑 Developer Advocate
✍️ Blogger @ https://blog.frankel.ch/
🎓 Eternal learner
📖 Book author at http://leanpub.com/integrationtest
Dino A. Dai Zovi @ddz.bsky.social I drink amari and I know things. $ddz
LMDDGTFY: https://duckduckgo.com/?q=dino+dai+zovi
NYC/BK
PentesterLab @pentesterlab.com We make learning web hacking and security easier. Online systems, code review, videos & courses that can be used to understand, test and exploit bugs!
PortSwigger Research @portswiggerres.bsky.social Web security research from the team at PortSwigger.
Baptiste Robert @fs0c131y.com CEO @ Predicta Lab | French Security Researcher, Ethical Hacking, OSINT
MF @appsecdude.bsky.social Infosec specialist
Toni de la Fuente @toniblyx.bsky.social Hardening for food. Open Source, Cloud and Security. Giving 🖤 to Prowler since 2016. Linux, DFIR, CISSP, Heavy Metal. Del Atleti. http://prowler.com
Johannes Ullrich, Ph.D. @jullrich.bsky.social Collector of logs, packets, and malware. Dean of Research at SANS.edu. Go Sentinels!
@randorisec.bsky.social @randorisec.bsky.social 
@mikeloss.bsky.social @mikeloss.bsky.social 
Azeria @azeria-labs.com Founder of Azeria Labs, Trainer, Author of Blue Fox: Arm Assembly Internals & Reverse Engineering
Sc00bz @sc00bz.bsky.social Ramblings of a programmer and cryptography enthusiast. I do stuff… sometimes. Also creating hsmVault.com … eventually.
Steffen Grunwald @grunwald.cloud Solutions Architect at AWS. Posts don't necessarily represent any company's positions.
IriusRisk @iriusrisk.bsky.social We make secure design the standard, scalable practice for all digital teams. IriusRisk makes secure design fast, reliable and accessible, even to non-security users, thanks to our automated and AI-augmented Threat Modeling Solution.
Matt Fuller @matthewdfuller.bsky.social Building https://wut.dev (a better AWS console). Cloud Security EM @Stripe. Ex-Founder @CloudSploit_, acquired by @AquaSecTeam. Ex-Adobe.
Chris Farris @jcfarris.bsky.social Cloud Security Nerd
https://www.chrisfarris.com
https://www.primeharbor.com
Marco Lancini @marcolancini.it 💼 Director of Security
🏠 MarcoLancini.it
📬 CloudSecList.com
📚 CloudSecBooks.com
💬 I write about security strategy, technical leadership, and cloud security.
Jeff Barr @jeffbarr.bsky.social Maker, Husband, Parent, Grandparent, VP & Chief Evangelist for AWS
Microsoft Security Response Center @msrc.microsoft.com We are the Microsoft Security Response Center. To report security vulnerabilities or abuse in Microsoft products, visit http://microsoft.com/en-us/msrc.
The Hacker News @thehackernews.bsky.social #1 Most trusted publication for breaking cybersecurity and hacking news, insights, and analysis for information security professionals.
Trimarc @trimarcsecurity.com We are the experts in Active Directory, Microsoft Cloud, and Identity security. Since our inception over a decade ago, we have provided professional services and a product-based SaaS solution focused on both on-prem and cloud Active Directory security. 
Semgrep @semgrep.com Semgrep is a code scanning platform for finding first and third-party security vulnerabilities in your code base.
@domchell.bsky.social @domchell.bsky.social 
Kyle Cucci @d4rksystem.bsky.social Malware Stuff @ Proofpoint
Markus Eisele @myfear.com Developer, turned to consulting, developer relations, sales, and landed in marketing.
Writing books for #Oreilly.
Into Java, Kubernetes and such.
Legal called to tell you that I'm not officially speaking for IBM.
@gentilkiwi.bsky.social @gentilkiwi.bsky.social 
Kelly Shortridge @shortridge.bsky.social software resilience, cybersecurity, complex systems | chief product officer @fastly.com | nyc
“In the information society, nobody thinks. We expected to banish paper, but we actually banished thought.”
kellyshortridge.com
@swagitda_ on Twitter
Andreas Wittig @andreaswittig.bsky.social 👷♂️ Building micro-SaaS on AWS
🛡️ bucketAV - Virus Scan for S3
🛠️ HyperEnv - self-hosted GitHub runners
🦠 attachmentAV - Virus Scan for Atlassian + Salesforce
🚨 marbot - Alerts and Notifications for Teams
🌍 Sharing my learnings at cloudonaut.io
LeakIX @leakix.bsky.social Maintaining and reporting for LeakIX.
We are NOT affiliated with any ransomware campaign.
http://mastodon.social/@leakix
Rich Warren @buffaloverflow.rw.md Red Team & Offensive Security Research @amberwolfsec.bsky.social
Matthias Kaiser @matthiaskaiser.bsky.social Vulnerability Researcher. 0xACED. Ex-Apple. Posts are my own.
Alexander Rausch @geheimoperation.bsky.social 🇪🇺 European Union Fan | Cyber Security | Founder of RedMimicry
Jeremy Long @ctxt.bsky.social Builder, infosec, SCA and SAST enthusiast, blue team.
Founder of OWASP dependency-check.
https://github.com/sponsors/jeremylong
Wiz io @wiz.io Secure everything you build and run in the cloud
Dylan @insecurenature.bsky.social Appsec and security hot takes.
Opie @akraut.bsky.social Info Security Geek
AKA @akraut@mastodon.sdf.org
vixentael 🛡️🇺🇦 @vixentael.bsky.social I do software security, security engineering and applied cryptography | problem-solver @cossacklabs | she | Ukraine
Alvaro Muñoz @pwntester.bsky.social Security Researcher with @GHSecurityLab. CTF #int3pids. Opinions here are mine!
Karl Fosaaen @kfosaaen.bsky.social VP of Research - @netspi
Co-author of “Penetration Testing Azure for Ethical Hackers” (http://amzn.to/3GOvW3A).
@kfosaaen on most other platforms
grsecurity @grsecurity.bsky.social Foundational security for the Linux kernel. Solving the most difficult memory unsafety problems. Created by @opensrcsec
Florian Roth @cyb3rops.bsky.social Placeholder profile : https://x.com/cyb3rops | glad to be in this respectful safe space | vi/vim
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.com
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)
Andy Robbins @andyrobbins.bsky.social aka wald0
Marina Krotofil @marmusha.bsky.social 
James Kettle @jameskettle.com Director of Research at @portswigger.net
Also known as albinowax
Portfolio: https://jameskettle.com/
shubs @shubs.io Co-founder, security researcher. Building an attack surface management platform, @assetnote.io
Silent Signal @silentsignal.bsky.social Professional Ethical Hacking Services
https://blog.silentsignal.eu
Przemysław Kłys @przemyslaw.evotec.xyz 4x Microsoft MVP Cloud & DataCenter | Working on #Windows, #ActiveDirectory, #MSExchange, #PowerShell, #Office365 in random order. 
Cyberknow @cyberknow.bsky.social Situational Awareness | Threat Research | Memes |#cybertracker | 'cyberwarfare' Correspondent | Meme Farmer 🇦🇺🇦🇺
Posts and Opinions are my own
@mrd0x.bsky.social @mrd0x.bsky.social 
Doyensec @doyensec.bsky.social Doyensec works at the intersection of software development and offensive engineering. We discover vulnerabilities others cannot, and help mitigate the risk.
Nasreddine Bencherchali @nasbench.bsky.social Detection @Splunk | previously @nextronsystems | @sigma_hq & @magicswordio maintainer | Eternal Learner
Corey Quinn @quinnypig.com Snarkmonger. Chief Cloud Economist at The Duckbill Group.
he/him.
Get my opinionated take on AWS news: http://lastweekinaws.com/t/
Signal: 833-AWS-BILL (833-297-2455)
Anton Chuvakin @anton1chuvakin.bsky.social www.chuvakin.org
CCTV IDIOTS @cctvidiots.bsky.social Exposing idiots behavior from all over the world caught on camera 
Jens Lange @kommunaler-notbetrieb.de Kommunaler IT-Sicherheitshausmeister | sammle kommunale IT-Sicherheitsvorfälle | schätze den IT-Grundschutz | hier nicht privat
#TeamInfoSic #TeamInfoSicöV
https://kommunaler-notbetrieb.de
OffensiveCon @offensivecon.bsky.social OffensiveCon is a highly technical international security conference focused on offensive security only. Organized by Binary Gecko GmbH.
Jason Haddix @jhaddix.bsky.social CEO, CISO, Trainer, Hacker, and Speaker.
AI + hacking + sec leadership.
ex:BuddoBot-Ubisoft-Bugcrowd-Fortify-HP-Redspin-Citrix.
Bee 🐝 @securibee.bsky.social Helping you hack a life you love.
💌 https://www.hivefive.community/
videos that boost your mental health @cheerfulclips95.bsky.social please DM video submission and removal requests 💚
DFIR Diva @dfirdiva.bsky.social DFIR Analyst
Blog: https://dfirdiva.com/
Free & Affordable Training (DFIR, OSINT, Cybersecurity): https://training.dfirdiva.com/
Community Events: https://events.dfirdiva.com/
Curated List of Discounts: https://training.dfirdiva.com/current-discounts
The DFIR Report @thedfirreport.bsky.social Real Intrusions by Real Attackers, the Truth Behind the Intrusion.
https://thedfirreport.com
John Hammond @johnhammond.bsky.social Hacker. Friend. Cybersecurity Researcher at Huntress.
Jake Williams @malwarejake.bsky.social Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.
Chris Sanders 🔎 🧠 @chrissanders88.bsky.social Digital Forensic Analyst, Researcher, Author
Ed.D.
Founder Applied Network Defense and Rural Tech Fund
Former Mandiant, InGuardians, DoD
Author: Intrusion Detection Honeypots, Practical Packet Analysis, Applied NSM- E @endi24.bsky.social @endi24.bsky.social
4n6lady @4n6lady.bsky.social 
malmoeb.bsky.social @malmoeb.bsky.social Head of Investigations at InfoGuard AG - dfir.ch
Christophe Tafani-Dereeper @christophetd.fr Cloud and container security • Security research and open source at Datadog
🇨🇭🇫🇷
https://christophetd.fr
Elbsides 2026 - June 5th, 2026-Hotel Hafen Hamburg @elbsides.bsky.social Computer security conference in Hamburg/Germany, organized for the community by the community - in-person event.
Elbsides is part of the Security BSides network.
June 4th, 2026 - additional Workshop day @ Jungheinrich
Thomas Scherhag @smartino.bsky.social Informatiker und Stoiker. 🦥
Arbeitet an Abschaffung der Faxgeräte.
An #CIDP erkrankt.
Lebensmotto: Selbstbestimmt leben in Freiheit und Zufriedenheit.
@cvetrends.bsky.social @cvetrends.bsky.social 
Will Dormann is on Mastodon @wdormann.bsky.social I play with vulnerabilities and exploits.
While this site initially showed promise, I've grown tired with its lack of improvement.
You'll find me @wdormann@infosec.exchange on Mastodon.
b33f @fuzzysec.bsky.social 意志 / Antiquarian @ IBM Adversary Services / Ex-TORE ⚔️🦅 / I rewrite pointers and read memory / AI Psychoanalyst / Teaching
at labs.calypso.pub
Grzegorz Tworek @gtworek.bsky.social 
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io