NebuSec

ActiveAI-native

Autonomous AI defense system for cyber attack

Y Combinator S26

What it does

NebuSec is founded by the world’s #1 hacking team. We were the first team to build an nginx RCE and the first to root Android 17. Our co-founders include members of the world’s No. 1 CTF team, DEF CON winners, Black Hat speakers, and PhD in cybersecurity. We have won $400K in bug bounties by exploiting the Linux kernel and Chrome browser. “Audited by NebuSec” is a mark of serious security credibility: a signal to customers, investors, and partners that your product has been reviewed by the world’s best hackers.

Its site says now · captured 2026-08-23

Nebula Security · AI security research lab

Find more exploitable vulnerabilities over lunch without relying on Mythos.

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