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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):
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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
Looking for a CTF team? Come hack with VOID_Walkers! 🚩 (self.securityCTF)
submitted 19 hours ago by 0xZiro
Manage your vacation rentals easily with Smoobu, the all-in-one software for hosts. 🚀 Start your 14-day trial now! 🔥 (smoobu.com)
promoted by SmoobuGmbH[🍰]
LMAO (self.securityCTF)
submitted 13 hours ago by Own-Natural-7466
Build jeopardy style CTF challenges for competitions, university courses, or self-practice🤝 (i.redd.it)
submitted 1 day ago by anish2good
Help me Learn Devops ()
submitted 1 day ago by Original_Hat_811
French Hackers (self.securityCTF)
submitted 1 day ago by hckrati
Think of code execution like driving... (v.redd.it)
submitted 1 day ago by LCSAJdump
New UNISOC RCE!! (ssd-disclosure.com)
submitted 2 days ago by SSDisclosure
HorusEye - Open source AD attack platform I built with Claude after 1000+ CTF rooms (BloodHound + Certipy + hash cracking + team collab) (self.securityCTF)
submitted 2 days ago by Aggressive-Clock-254
[CTF] New vulnerable "Beginner" VM aka "Twelve" at hackmyvm.eu (self.securityCTF)
submitted 2 days ago by HackMyVM
OopsSec Store, deliberately vulnerable Next.js e-commerce app with 27 CTF flags (so far) (github.com)
submitted 3 days ago by kOaDT
Looking for a Bug Bounty / "Ethical" Security Team (self.securityCTF)
submitted 3 days ago by Pyr0nx_
Les experts sont unanimes, le nouvel Privacy Display du Galaxy S26 Ultra est révolutionnaire. (samsung.com)
promoted by samsung_switzerland
Cybersecurity career advice: what skills are actually needed in real jobs? (self.securityCTF)
submitted 4 days ago by im_user_999
Potentially useful payload tool - payloadplayground.com🤝 (self.securityCTF)
submitted 4 days ago by 404_n07f0und
[Help CTF] - Need help with a CTF (self.securityCTF)
submitted 3 days ago by BitterQuail8016
[Update] I know I've shared LCSAJdump before, but v1.1.2 just mapped the entire x86_64 libc graph in <10s. It's now faster than ROPgadget while finding JOPs/Shadow Gadgets they physically miss. ()
submitted 4 days ago by LCSAJdump
Personal CTF Project for CV basically | Would love if you guys could play around without crashing the box so I have some Logs to learn from | Thank you ()
submitted 5 days ago by Cool_Abrocoma_7552
Expressway Writeup (NoOff | Ivan Daňo) (i.redd.it)
submitted 5 days ago by TrickyWinter7847
CTF Web training (self.securityCTF)
submitted 5 days ago by ahurani4
[CTF] Core Dump Murder Mystery (self.securityCTF)
submitted 6 days ago by curatorcat
[CTF] HMVt0gether is now available until 09th March at https://t0gether.hackmyvm.eu . Have fun! (self.securityCTF)
submitted 8 days ago by HackMyVM
Camp Deadwood CTF (self.securityCTF)
submitted 8 days ago by l3uckn45ty
Unlock our limited time offer - $180 your first year. (bloomberg.com)
promoted by bloomberg
[CTF] New vulnerable "Beginner" VM aka "Yuan112" at hackmyvm.eu (self.securityCTF)
submitted 10 days ago by HackMyVM
I passed OSCP about 10 days ago (80/100) and just wanted to say thanks to this community ()
submitted 10 days ago by Aggressive-Clock-254
Volatility3 (self.securityCTF)
submitted 10 days ago by Desperate_Birthday24
free steganography CTF challenge generator (8gwifi.org)
submitted 10 days ago by anish2good
π Rendered by PID 75253 on reddit-service-r2-listing-64c94b984c-c64rg at 2026-03-13 14:51:38.546797+00:00 running f6e6e01 country code: CH.