YC Companies/Summer 2026/Nebula Security
Nebula Security logo

Nebula Security

Building Mythos for everyone

Summer 2026B2B / B2B -> SecuritySan Francisco, CA, USA; Remote4 employees
B2B
Security
Cybersecurity
Enterprise
AI

About

Nebula Security 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 Nebula Security” 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.

Build your own investing agent

GPAgent keeps YC listings public and neutral. Fund-specific scoring, notes, and workflow state live in each customer workspace.

Join the GPAgent waitlist

Founders (4)

Eten Zou
CEO & Founder
Frank Wu
Founder
Xiaochuan Yu
Founder
Yuan Tan
Founder

Details

Status
Active
Stage
Early
Team Size
4
Regions
United States of America, America / Canada, Remote, Fully Remote