Chromium 148 Fingerprinting Risk

Executive Summary:

• Math.tanh is now fingerprintable to link underlying OS in Chromium 148.
• This can potentially contradict User-Agent claims.
• Most users are not spoofing their user agent headers to be a different operating system.

The Internet’s Verdict: 70% Hyped, 30% Skeptical

What’s the Issue?

Since Chromium 148, the Math.tanh function can be used to fingerprint the underlying operating system.

Forum Reactions

Some experts have weighed in on the issue:

> One tanh call on the right input is a per-OS signature. Claim macOS, return Linux math bits, and you have contradicted your own User-Agent.

This could have significant implications for user privacy.

Kind of a smart move by this company: write up an AI analysis of all fingerprinting techniques in hopes they get fixed after outrage so their scraping company can make more money.

Conclusion

The Chromium 148 update has introduced a new fingerprinting risk. While it may not be a major concern for most users, it highlights the ongoing battle for online privacy.

Focus Keyword: Browser Fingerprinting