About
Xiaochuan Yu founded Nebula Security and previously participated in competitive hacking, including DEFCON competitions and CTF events. They hold an M.S. from UC San Diego and have published security research at USENIX Security and BlackHat.
xia0o0o0o @nyaaaaa_ovo
Started from research at U.S. Naval Research Laboratory, Tor protects people around the world, makes it a critical target. Journalists, activists and other high risk individuals need it. In some cases, their physical safety depends directly on it. Get VEGA before incident. https://t.co/NayyosH9TF
Jul 28, 2026 Β· β₯ 15 Β· β 1
xia0o0o0o @nyaaaaa_ovo
When you use VEGA, this is the team behind it. Securing your products with the strongest hacking team in the world 24x7 when bad actors are all equipped with frontier intelligence. https://t.co/8CdfnRbZYp https://t.co/YMiLBkLkvE

Jul 23, 2026 Β· β₯ 18
xia0o0o0o @nyaaaaa_ovo
Nebula Security is bring extraordinary security protection to one of the most important foundations of software in the world. https://t.co/vJ3UksnD1N
Jul 21, 2026 Β· β₯ 19
Founder at Nebula SecurityYC S26
Intro paths
Xiaochuan went through Y Combinator (Summer 2026) β any YC alum in your network can reach them through the YC community.
Their group partner at YC was Ankit Gupta, General Partner at Y Combinator β the partner who ran Nebula Security's batch and knows the company first-hand. YC profile β
In turn, Xiaochuan can intro founders to Nebula Security's investors below.
