MeteoSchweiz @meteoschweiz.ch Hier posten Meteorologen und Meteorologinnen von MeteoSchweiz - dem Bundesamt für Meteorologie und Klimatologie.
Pascal Gujer @evilmaid.bsky.social security researcher | speaker | trainer | lockpicking | evil maid attacks | maker | https://threema.id/MPK39EB8 | hands-on-security.com
Mayor Zohran Kwame Mamdani @mayor.nyc.gov Fighting every day to deliver a city that working New Yorkers can actually afford. Mayor of New York City.
teilensWert e.V. @teilenswert.bsky.social Wir geben dir Content, der wichtig ist und weiterbringt. Du sorgst dafür, dass er gesehen wird. 🔄 Für Demokratie, Umweltschutz und soziale Gerechtigkeit.
👉 https://teilenswert.de
Roter Bär @roterbaer.bsky.social Lefty, politics-brained. bell hooks & Johanna Dohnal.
RationalEdge @rationaledge.bsky.social Traditional malware analysis platforms give you verdicts. RationalEdge gives you understanding. Transform your threat analysis workflow with intelligence you can understand and trust.
Learn more at https://rationaledge.io
Microsoft Threat Intelligence @threatintel.microsoft.com We are Microsoft's global network of security experts. Follow for security research and threat intelligence. https://aka.ms/threatintelblog
Ralph Ruthe @ruthe.de Autor, Musiker, Filmemacher, Cartoonist
@patrikwehrli.bsky.social @patrikwehrli.bsky.social 
ANSSI @anssi-fr.bsky.social Compte officiel de l'Agence nationale de la sécurité des systèmes d'information (ANSSI) | Retrouvez les alertes de #cybersécurité sur le compte @cert-fr.bsky.social
Compass Security @compass-security.com Penetration Testing, Red Teaming, Incident Response, Managed Detection, Digital Forensics, Security Training, Managed Bug Bounty, Cyber Training Range
The Vertex Project @vertexproject.bsky.social We create technology for analytical teams to provide intelligence-driven insights to decision makers.
For more info, visit https://vertex.link!
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.
THS @ths.ch https://23.social/@ths
Wenn wir vom Feind bekämpft werden, dann ist das gut. EN/DE. Hacker. Co-Founder & CEO at modzero and modone.
Bernd Le Pain @berndlepain.bsky.social Schalt endlich ab
Tristan Lee @tristanl.ee Journalist @decoherence.media using open sources to expose far-right networks
Other bylines @bellingcat.com @texasobserver.org
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
Rutger Bregman @rutgerbregman.com Historian | Author of ‘Utopia for Realists’ (2014), ‘Humankind’ (2020) and ‘Moral Ambition’ (2025) | Co-founder of The School for Moral Ambition | moralambition.org | rutgerbregman.com
📖 substack.com/@rutgerbregman
📺 youtube.com/@rutger.bregman
Sergiu Gatlan @serghei.bsky.social Cybersecurity/tech reporter @BleepingComputer / serghei.ro
TrendAI Zero Day Initiative @thezdi.bsky.social TrendAI Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
Whitney Merrill @wbm312.bsky.social I nudge people to care about privacy and security. CPO/DPO. Privacy/infosec lawyer. Hacker. Fighting for privacy, digital civil liberties & the users. Ex @EA @FTC |my views are my own. I used to post on Twitter at @wbm312.
Catalin Cimpanu @campuscodi.risky.biz ☆ Cybersecurity reporter
★ Newsletters at Risky Business
#infosec #cybersecurity
https://risky.biz
Zack Whittaker @zackwhittaker.com Security editor, TechCrunch
Signal: zackwhittaker.1337
My stories: techcrunch.com/author/zack-whittaker
My newsletter/blog: this.weekinsecurity.com
John Hultquist @hultquist.bsky.social Mandiant Intelligence at Google. CYBERWARCON and SLEUTHCON founder. Johns Hopkins professor. Army vet.
Meredith Whittaker @meredithmeredith.bsky.social President of Signal, Chief Advisor to AI Now Institute 
Patrick Howell O’Neill @patrickhowelloneill.com Journalist at Bloomberg News in DC. Signal: @howelloneill.01, email: patoneill1@bloomberg.net https://www.bloomberg.com/authors/AXb8dLPHBFc/patrick-howell-oneill
Randall Munroe @xkcd.com 
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
J. A. Guerrero-Saade (JAGS) @jags.bsky.social VP of Intelligence and Security Research, Senior Technical Fellow (AI) @ SentinelOne.
Distinguished Fellow and Adj Professor @ Hopkins SAIS Alperovitch Institute. Three Buddy Problem Co-Host. LABScon Founder, Cyber Paleontologist, Fourth-Party Collector.
Lorenzo Franceschi-Bicchierai @lorenzofb.bsky.social Real-time historian of the late cyber capitalist era @TechCrunch, writing about the intersection of hackers, human rights, and spies.
Also writing a book about Hacking Team and the history of government spyware.
☎️ Signal: +1 917 257 1382
Pwnallthethings @pwnallthethings.bsky.social Just thinking out loud.
Dominic Stucki @dominicstucki.ch European, democrat, public transport specialist and rail nerd from Zürich, Switzerland. Writes endless rail travel threads. Job: Concepts and network design at SBB.
🦣 urbanists.social/@dominicstucki
🌐 dominicstucki.ch
WOZ @woz.ch Journalismus mit Haltung. Einmal die Woche – dafür richtig. www.woz.ch
Über uns: https://www.woz.ch/info/woz
Newsletter: https://www.woz.ch/newsletter
Abo: https://www.woz.ch/abo/bestellen
Podcast «Hörkombinat»: https://www.woz.ch/audio/hoerkombinat
Per Morten Sandstad @pmsandstad.bsky.social Cyber Threat Intelligence | Incident Response | 127.0.0.1@Oslo.Norway | $job@mnemonic.no
Alexander Jäger @alexanderjaeger.bsky.social Swim, Bike, Run, Cyber
Stöge @stoege.bsky.social N-örd Ost Schwiizer
Xavier Mertens 🇧🇪 @eeksme.bsky.social A fork of https://twitter.com/xme
Andrew Case @attrc.bsky.social Volatility Core developer, Dir. of Research Volexity, LSU Cyber
Lenny Zeltser @lennyzeltser.com Builder of security products and programs. Teacher of those who run them.
https://zeltser.com
PIVOTcon @pivotcon.bsky.social Threat Research Conference in Malaga, Spain, 6-8 May 2026
#StayTuned #ComingSoon #PIVOTcon #PIVOTcon26
https://pivotcon.org
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.
David Oxley @oxley.io Interim head of information security at Anduril Industries. @CitizenLab.ca Research Fellow. Former federal agent. Fan of space, books, cyberpunk, sci-fi, espionage history, and storms. Personal account. 🇺🇸 🇺🇦 🇹🇼 #ThreatIntel
Storm chasing 📸 🌪️: @wxdox.com
cy//ective @cyllective.bsky.social IT Security Services - 🇨🇭🤖👨💻 https://cyllective.com
Julien Tercier @jultercier.bsky.social IT Security #SBB / #schwyzerörgeli/ #Riaz #Gruyère / #zerowaste / j'aime la moutarde de bénichon / HCFG Fan
Sandro Volery @volery.org https://cyllective.com
https://volery.org
Mark Russinovich @markrussinovich.bsky.social CTO of Microsoft Azure, author of novels Rogue Code, Zero Day and Trojan Horse, Windows Internals, Sysinternals tools. Opinions are my own.
The Shadowserver Foundation @shadowserver.bsky.social Our mission is to make the Internet more secure by bringing to light vulnerabilities, malicious activity and emerging threats. Join our Alliance!
https://shadowserver.org/partner
John Hammond @johnhammond.bsky.social Hacker. Friend. Cybersecurity Researcher at Huntress.
Ryan Naraine @ryanaraine.bsky.social Three Buddy Problem
https://securityconversations.com
evacide @evacide.bsky.social Director of Cybersecurity @eff.org
Co-founder of @stopstalkerware.bsky.social
These opinions are my own, not my employer's
I did a TED talk once
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. 🏳️🌈
Malware Unicorn @malwareunicorn.bsky.social @Straiker. Ex-Microsoft. Ex-Meta RedTeam, Ex-Endgame, Ex Fireeye. malwareunicorn.org
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.
chompie @chompie.rip hacker, poster, weird machine mechanic
https://chompie.rip
Bill Marczak @billmarczak.org senior researcher at @citizenlab.ca
Costin G. Raiu @craiu.bsky.social Romanian antihacker from another planet. #threatintel #yara #chess #taekwondo black belt
Motto: "One reboot a day keeps the implant away"
ExecuteMalware @executemalware.bsky.social Malware analyst
Doctors Without Borders / Médecins Sans Frontières (MSF) @msf.ca 🚑 Providing medical care where & when it’s needed.
🥼 Fournir des soins médicaux humanitaires là où les besoins sont les plus grands.
Independent. Neutral. Impartial. | Indépendant. Neutre. Impartial.
doctorswithoutborders.ca | medecinssansfrontieres.ca
Rob Joyce @rgblights.bsky.social Cyber guy. Former NSA cybersecurity director and chief of TAO. Lover of memes. Warning - occasional outrageous Christmas light content.
Adrienne Fichter @adfichter.eurosky.social Swiss Investigative Tech Journalist.
Awards 2018, 2020, 2021, 2023, 2024
Investigative Tech Reporterin.
Republik.ch & Techjournalismus-Blog DNIP.ch.
Eigener Blog: Techjournalismus.ch
#Privacy, #DigitaleEthik, #Cybersecurity, #Surveillance, #Cloud
Karpi @karpi.bsky.social Autor, Filmproduzent und Komiker
👋 Anfragen für Auftritte, Moderation und KI-Referate: booking@atelieer.ch
www.karpi.io
Balthasar Glättli @bglaettli.bsky.social Bei den Zürcher Stadtratswahlen vom 8.3.2026 in den Zürcher Stadtrat gewählt. Former MP Swiss GREENS @gruenech.bsky.social (https://www.balthasar-glaettli.ch), born at 327.45 ppm.
Martin Steiger 🦋 @martinsteiger.ch Anwalt und Unternehmer 🇨🇭 für Recht im digitalen Raum (Steiger Legal AG / Datenschutzpartner AG) · 🦭-freie Zone · #BildungAberSicher #Netzpolitik #TeamDatenschutz · https://martinsteiger.ch mit Kontaktadressen · Gelegentliche Löschung von Beiträgen 👋🏻
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
@halvarflake.bsky.social @halvarflake.bsky.social 
Maddie Stone @maddiestone.bsky.social Security Researcher at Google Project Zero. 0-days all day. Love all things reverse engineering. she/her
Pascal Junod @cryptopathe.me applied cryptographer - certified nerd god - head of cryptography & research at duokey - founder modulo p - ex-Snap - co-founder ex-strong.codes - has-been professor - trail runner - aidjolat
the grugq @thegrugq.bsky.social 
Hash Miser ✊🇺🇦 @hash-miser.bsky.social Internet janitor, #CERT #BlueTeam and Whisk(e)y enthusiast "Everything you do is useless ! Enjoy 🍻" hash_miser@infosec.exchange
LiveOverflow 🔴 @liveoverflow.bsky.social wannabe hacker... he/him
🌱 grow your hacking skills https://hextree.io
Min Li Marti @minlimarti.bsky.social Politikerin, Podcasterin, Publizistin
https://minlimarti.substack.com/
SwiftOnSecurity @swiftonsecurity.com computer security person. former helpdesk
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.
Lukasz Olejnik @lukaszolejnik.bsky.social Security & Privacy. Data Protection. Research & Development. Engineering. Analyst. Policy. W3C. Consultant. Author. King’s College London/War Studies. me@lukaszolejnik.com
lukaszolejnik.com/books
blog.lukaszolejnik.com
techletters.substack.com
Marcus Hutchins @malwaretech.com threads.com/@malwaretech
https://linkedin.com/in/malwaretech
https://marcushutchins.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
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.
Marcus Beyer @mbeyer.bsky.social Security Awareness Evangelist. Podcaster für "SecurityAwarenessInsider", Specialist for Corporate Communication. Award Winner. Security Awareness Lead for Swisscom (Schweiz) AG
Inside IT @inside-it.ch Das Schweizer Tech-Magazin für IT-Verantwortliche.
https://www.inside-it.ch/
Fredy Künzler @kuenzler.ch CEO, Network Architect, Founder of @init7.net. Born at 323.15ppm CO2. 42U. Parliament-Member in Winterhur, Switzerland since 2008. https://threema.id/VEHSJBJS
Republik Magazin @republik.ch Das digitale Magazin für Politik, Wirtschaft, Gesellschaft und Kultur. Seit 2018. Unabhängig. Werbefrei. Finanziert von seinen Leserinnen und Lesern.
www.republik.ch
Abo 22 Franken/Monat oder Mitgliedschaft 240 Franken/Jahr: republik.link/shop-bsky
Candid/MyLaocoon @candid.bsky.social @MyLaocoon - Im a security geek. My tweets are my own. #xorlab - Orga of #Area41 #DC4131 - I break stuff, I have fun, I have fun breaking stuff ;
G. Cuonz @gcuonz.bsky.social Fighting Fraud and Crime
Reto Knutti @retoknutti.bsky.social Professor for climate physics at @ethzurich.bsky.social.
Pasquale Stirparo 🇺🇦 🇪🇺 @pstirparo.bsky.social Founder @ RationalEdge
#ThreatIntel #ICS #DFIR; ''Learning iOS Forensics'' author;
#BSidesZH #PIVOTcon org.
@pivotcon.bsky.social
https://pstirparo.ch
https://rationaledge.io
Related interests/obsessions:
#ThreatHunting #CTI #YARA #CriticalThinking #Books
Stefan Frei @stefanfrei.bsky.social Cyber security expert, pentester, speaker & tech enthusiast. Tame complexity 4 security. Alum RWRI-13, @Accenture, @Swisscom, @Secunia, NSS Labs, ISS X-Force https://techzoom.net
Tux0ne 👾 @tuxone.ch nobody cares, go to work
Luca @lucaskyblue.bsky.social SOC and Cyber Security Analyst @ Swisscom | interested in cyber security and technologies | tweets reflect my own opinions
Petar Marjanović @piit.ch 𝚂𝚠𝚒𝚜𝚜-𝙲𝚛𝚘𝚊𝚝𝚒𝚊𝚗 𝚓𝚘𝚞𝚛𝚗𝚊𝚕𝚒𝚜𝚝, 𝚋𝚊𝚜𝚎𝚍 𝚗𝚎𝚊𝚛 𝙱𝚎𝚛𝚗.
𝗚𝗼𝘁 𝗮 𝘀𝘁𝗼𝗿𝘆 𝗼𝗿 𝗷𝘂𝘀𝘁 𝘄𝗮𝗻𝘁 𝘁𝗼 𝘁𝗮𝗹𝗸?
– Signal: petarmarj.92
– Threema: DUT426XW
– E-mail: trash@piit.ch
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 ✨🌈🦄
tomchop @tomchop.me Cybersecurity nerd; #DFIR @ Google by day; FOSS, threat intel and malware analysis by night. Investigator, coder, terrible sense of humor.
https://yeti-platform.io and more (github.com/tomchop)
views are my own • he/him • tomchop.me
Silas Cutler @silascutler.bsky.social You may know me from your server logs.
#Malware, Hacks, Internet Scanning, #CTI
Łukasz @lukasz.bsky.social Breaking bad UTF-8 implementations since 1991. I secure cybers and run trails. If I’m posting, I’m hopefully not on a trail. Views own. He/him- L Lofmir @lofmir.bsky.social Technical Lead Cyber Threat Intelligence (Telco) // Security Incident Responder (CSIRT) at Swisscom
Johannes Bader @viql.bsky.social Reverse engineer / malware analyst. On the hunt for domain generation algorithms.
Oliver Jäschke @zurich-publifon.bsky.social Photograher, railway enthusiast, city walker
Dave @cydave.bsky.social Security Engineer doing Web Application Security 🇨🇭🐈⬛ @ cyllective.com
Rarely blogging: https://0dave.ch/
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
Jake Williams @malwarejake.bsky.social Breaker of software, responder of incidents, IANS Faculty, VP R&D Hunter Strategy.