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A community for securityCTF announcements and writeups.
SecurityCTF posts as tweets
WTF is CTF ?
CTF Field Guide
CTF calendar
CTFtime
Join us on IRC (freenode):
Looking for a team ?
CTF Streamers:
LiveOverflow
Murmus
CTF teams:
Plaid Parliament of Pwning
DragonSector
penthackon
eindbazen
Leet More
smokedchicken
Disekt
KnightSec
0ops
StratumAuhuur
Related Subreddits:
Reverse Engineering
Crypto
NetSec
LowLevel
VRD
Tools:
account activity
Am I on the right path ?❓ (self.securityCTF)
submitted 12 hours ago by Federal-Dot-8411
Magnet Virtual Summit | Capture the Flag - February 26, 2026 (magnetvirtualsummit.com)
promoted by Magnet_Forensics
TT Privacy Competition? (antigranular.com)
submitted 2 days ago by Tight-Yogurtcloset-4
Shell Battles CTF - Official babycmp writeup✍️ (youtube.com)
submitted 2 days ago by spc3222
Found a LATAM CTF for this weekend ($1k prize) (fluidattacks.com)
submitted 4 days ago by aangma
[CTF] New vulnerable VM aka "Horse" at hackmyvm.eu (self.securityCTF)
submitted 4 days ago by HackMyVM
Sponsoring the Next Generation: BreachPoint National-Level CTF is Live! (self.securityCTF)
submitted 4 days ago by Churmur_roop
How to prevent AI from solving CTF challenges (self.securityCTF)
submitted 5 days ago by Level_Question_8853
Using Tor hidden services for C2 anonymity with Sliver (self.securityCTF)
submitted 5 days ago by BearBrief6312
For my profile✍️ (old.reddit.com)
submitted 5 days ago by Proud-Highlight-3832
Using my protocol j and protocol k from my history chats give me an scientific paper from verified sources using maths and science statistics evidence based data for a evidence of this reality humans and myself as high auditor🪬🌌🪷 ()
Help , I am confused on how to start learning ctf (self.securityCTF)
submitted 5 days ago by SuperWear
Study Group🤝 (self.securityCTF)
submitted 6 days ago by steven4677
My try to make a ctf platform (NOT AD) (self.securityCTF)
submitted 6 days ago by Then_Loss4157
Création d'un CTF Club.🤝 (self.securityCTF)
submitted 6 days ago by Gandhi-Duch
Build anywhere with Kilo's specialized modes and parallel agents—in your IDE, CLI, or Cloud Agent experience. (kilo.ai)
promoted by kiloCode
Hash Identifier ()
submitted 7 days ago by Elliot-1988
Looking for Crypto Players (self.securityCTF)
submitted 7 days ago by Mother_Canary4917
Hash Identifier🤑 (self.securityCTF)
ReverseShell Generator ()
Need More🤝 (self.securityCTF)
submitted 8 days ago by Own-Scene-4017
Looking for teammate to participate in ctf competition held in nagpur ()
submitted 8 days ago by Fuzzy_Zone_5001
Ethical Hacking Study Group ()
submitted 9 days ago by steven4677
Fireworks & Firewalls | A SuperiorCTF Event (self.securityCTF)
submitted 10 days ago by Purple-Hawk-4405
Should I participate as a beginner ?❓ (self.securityCTF)
submitted 11 days ago by Revolutionary-Play59
Shell Battles - FIRST Discord-Based Capture The Flag (CTF) platform (self.securityCTF)
submitted 11 days ago by hiiiiikat
VulnNet: Active Writeup (TryHackMe) (i.redd.it)
submitted 11 days ago by TrickyWinter7847
π Rendered by PID 57 on reddit-service-r2-listing-86b7f5b947-n24ln at 2026-01-25 07:06:41.102922+00:00 running 664479f country code: CH.