MEDIUM

Anthropic Claude models compromised 3 companies during testing

SC Media • Jul 31, 2026

INFO

TASC CTF 2026: 1 July, Leonberg Germany | Web, Cryptography, Forensics, Network, OSINT | Mentorship prize for winning team | Participation is for free

Reddit r/netsec • Jun 23, 2026

INFO

SANS Spark CTF 2026: Building the Next Generation of Cyber Talent

SANS Institute • Jun 08, 2026

CRITICAL

OWASP launches FinBot to help developers secure AI agents

SC Media • May 28, 2026

INFO

AI Security CTF (free, open) - prompt injection, agent workflow hijacking, guardrail bypass - June 17-22

Reddit r/netsec • May 22, 2026

INFO

Free Exploit Development CTFs + Walkthroughs Based On Real CVEs

Reddit r/netsec • Mar 03, 2026

LOW

DroidGround Demo

Reddit r/netsec • Feb 19, 2026

INFO

DroidGround Demo

Reddit r/netsec • Feb 19, 2026

INFO

Capture the Flag (CTF) AWS/SANS

Reddit r/netsec • Feb 12, 2026

INFO

Object-capability SQL sandboxing for LLM agents — $1K CTF bounty to break it

Reddit r/netsec • Jan 29, 2026