Math.tanh

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Since Chromium 148, Math.tanh is now fingerprintable to link underlying OS

A technical observation was posted to Hacker News that Math.tanh() in Chromium 148 exhibits OS-specific behavior, enabling browser fingerprinting via mathematical function output — a previously undocumented side channel.

Spin 35% Claim Present in Source AI Risk Moderate

Hacker News Front Page

Jul 13, 2026

Related Claims

01 Since Chromium 148, Math.tanh is now fingerprintable to link underlying OS

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