About
Stephen Xu previously worked in offensive security at TikTok and has competed in capture-the-flag cybersecurity competitions. He has also conducted research in computational physics.
stuxf @stuxfdev
Luna is so cheap now, so excited to use this model anywhere and everywhere π₯Ή β¦ beginning to feel like intelligence too cheap to meter https://t.co/Fg2vPY0oR4
Jul 30, 2026 Β· β₯ 1
stuxf @stuxfdev
how is this happening again https://t.co/o8otkSAihr
May 7, 2026 Β· β₯ 4
stuxf @stuxfdev
We at @verialabs built an autonomous CTF agent in a weekend and won 1st place at @BSidesSF 2026, solving all 52/52 challenges. It races multiple AI models (Claude, GPT-5.4) in parallel, each in isolated Docker sandboxes with full CTF tooling. A coordinator LLM reads solver
Mar 23, 2026 Β· β₯ 317 Β· β 53
Founder at Veria LabsYC F25
Intro paths
Stephen went through Y Combinator (Fall 2025) β any YC alum in your network can reach them through the YC community.
Their group partner at YC was Tom Blomfield, General Partner at Y Combinator β the partner who ran Veria Labs's batch and knows the company first-hand. YC profile β
In turn, Stephen can intro founders to Veria Labs's investors below.
