Tilion launches Fortress v3, a stealth Chromium engine for undetected web agents
Tilion (YC F26) released version 3 of Fortress, its stealth Chromium-based browser infrastructure, as a free open-source tool for developers.
Briefing
- Hacker News: Tilion (YC F26) released version 3 of Fortress, its stealth Chromium-based browser infrastructure, as a free open-source tool for developers.
Why it matters
As anti-bot systems grow more sophisticated, running web agents at scale without detection has become a major bottleneck. Fortress aims to solve this by providing a Chromium fork optimized for stealth, potentially lowering the barrier for developers building large-scale extraction and automation pipelines. The open-source release could also accelerate community contributions to evasion techniques.
Sources
- Reported · Hacker News · 2026-10-02 — Fortress(Tilion YC F26): A stealth Chromium so your agents stop getting blocked
Watch next
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