Tavis Ormandy

@taviso

Vulnerability researcher at Google. This is a personal stream, opinions expressed are mine. I'm also @[email protected]

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FluxFingers

@fluxfingers

⏩ bsky.app/profile/fluxfi… ⏪ Participating in CTF competitions representing @ruhrunibochum since 2007. Also, organizers of annual @hack_lu CTF.

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Gynvael Coldwind (@gynvael.bsky.social)

@gynvael

security researcher/programmer/director @ HexArcana Cybersecurity GmbH ⁂ @pagedout_zine ⁂ @DragonSectorCTF ⁂ youtube.com/@GynvaelEN ⁂ ex-Google ⁂ he/him

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picoCTF

@picoctf

picoCTF is the fun, free way to learn and practice cybersecurity. Created by security and privacy experts at @CarnegieMellon.

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CCCAC-CTF

@cccac_ctf

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Shellphish

@shellphish

Capture the Flag Team from UC Santa Barbara's SECLAB and Arizona State University's SEFCOM. DARPA Cyber Grand Challenge 3rd Place. Phrack author. Let's hack!

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Dragon Sector

@dragonsectorctf

A CTF team

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!SpamAndHex

@spamandhex

CTF Team. S㎩mAndFlags: Uけimate w呎は屸de C㏊mᒆonship Teaser ꕫꕫ - ㎩㏚i㎄ Edition -- May 08 18:00 UTC +48h. spamandhex.com/ctf Contact: spamandhex(at)gmail

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LiveCTF

@livectf

Live hacker versus hacker streams with commentary

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CSCG

@c_s_c_g

Finding Security Talents and helping them grow. Impressum / imprint: cscg.de/impressum/

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KITCTF

@kitctf

We like to hack things, all the things. Tweets and typos by @NearBeteigeuze and @intrigus_

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pwntools

@pwntools

CTF Exploit Development Framework || pwntools.com || Discord discord.gg/96VA2zvjCB

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Ehemaliges Profil des Chaotikum e.V.

@chaotikum_ev

DIESES PROFIL IST DEAKTIVIERT social.chaotikum.org/@chaotikumev Impressum: chaotikum.org/impressum/

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LiveOverflow 🔴

@liveoverflow

wannabe hacker... he/him 🌱 grow your hacking skills @hextreeio

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Balsn

@balsnctf

A CTF team from Network Security Lab of National Taiwan University

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FAUST

@fausecteam

FAU Security Team: CTF team of @FAU_Germany and organizers of @faustctf

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p4

@p4_team

p4 is a Polish CTF team

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Kampet

@kampetl

CTF player with ssh@uzl + Infobahn | he/him

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Schülerakademie Lübeck

@saluehl

Wir möchten bei Schüler:innen ermöglichen ihre Interessen und Fähigkeiten für Themen im Bereich der Naturwissenschaften und Technik zu vertiefen.

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NetUSE AG

@netuse_ag

Internet Service Provider und Systemhaus mit Schwerpunkt auf IT-Sicherheit, IT-Infrastruktur und Netzwerktechnologie aus dem Norden.

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ENOFLAG

@enoflag

Contact us via Email: twitter /at/ enoflag.de

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RedRocket.Club

@redrocket_ctf

Club of Hackers, CTF Team, @CyberSecRumble Organizer, Biomüll. We are familiar with the works of Pablo Neruda.

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Eat Sleep Pwn Repeat

@eatsleeppwnrpt

Eat Sleep Pwn Repeat – CTF Team

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DiceGang

@dicegangctf

not about chutes and ladders

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ALLES

@allesctf

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mhackeroni

@mhackeroni

Italian CTF team. DEF CON finalists. Cyber. Pasta. And now even satellites?! ✉️ [email protected]

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PFS

@pfs_ctf

PFS CTF team. Endless search for the pwn. Still thinking about pin D15...

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NorseCode

@norsecodectf

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ECSC / openECSC

@ecsc_openecsc

🇪🇺 Updates about the #ECSC European Cybersecurity Challenge that will be held in Turin, Italy in 2024 and #openECSC held online & open to all. #ECSC2024 🇮🇹

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organizers

@0rganizers

1st place @ CTFTime 2022 infosec.exchange/@organizers

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polygl0ts

@polygl0ts

Official @EPFL_en @ICepfl CTF team.

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cts🌸

@gf_256

Co-founder and hacker @zellic_io & @pb_ctf | youtube.co/basteg0d69 | 24 Intern @egirl_capital slow to reply to DMs

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Overflow

@oooverflow

The pr(o)ior organizers of DEF CON CTF!

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Real World CTF

@realworldctf

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/upb/hack

@upbhack

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Kalmarunionen

@kalmarunionendm

KalmarCTF 2025: kalmarc.tf Homepage: kalmarunionen.dk CTFtime Link: ctftime.org/team/114856

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perfect blue

@pb_ctf

A weeb team with a CTF problem. The official Twitter account of the perfect blue CTF team. Ranked #1 2020, 2021, 2023 (as part of Blue Water)

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Sauercloud

@sauercl0ud

Sauercloud (a.k.a. Krautstrike, a.k.a. Germany's next ROPModel) is a cooperation of many german speaking CTF teams, first assembled for DEFCON CTF 2018.

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enigame

@enigamepuzzle

The puzzle hunt.

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saarsec

@saarsec

We are the saarsec CTF team. Schwenk and pwn. @CISPA @Saar_Uni

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justCatTheFish

@justcatthefish

Polish ctf team. Captain: @disconnect3d_pl Vice: @haqpl ctftime.org/team/33893

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Okan Seker

@_oseker

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Luca Wilke

@lucawilkeuzl

Computer Science Researcher

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hxp

@hxpctf

hxp - CTF Team This account is inactive. Follow hxp at infosec.exchange

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WreckTheLine

@wrecktheline

🇷🇴🇳🇱🇨🇿🇯🇵🇰🇷🇺🇸🇸🇬🇩🇪 CTF team

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FS MaIn

@fachschaft_main

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Jan Wichelmann

@janwichelmann

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HTsP

@htspctf

Romania 🇷🇴 Academic/ High-school CTF (Capture the flag) team.🚩

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CTFReminder

@ctfreminder

I tweet ctfs when they appear on @CTFtime and 24 hours before they start. Bugs or complaints: @nazywam

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FabLab Lübeck

@fablabluebeck

Unsere Geräte & Maschinen, SelfLab-Termine und weitere Infos findet Ihr auf unserer Webseite und im Forum.

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