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Index/People/Bruce Schneier

Bruce Schneier

American computer scientist

Fact-Checks

3 results
Dec 1, 2025
Most Viewed

Have there been any instances of law enforcement obtaining Tor user data without a warrant in 2024?

Reporting in 2024 shows multiple media and cybersecurity outlets saying German law enforcement surveilled Tor relays for months and used timing-analysis techniques to deanonymize at least one user—cla...

Jan 6, 2026

What is a warrant canary and why do VPNs use them?

A warrant canary is a public statement a service publishes saying it has not been served certain secret legal orders; if the statement disappears or stops being updated, users infer the service was li...

Jan 3, 2026

What technical methods has the FBI used historically to deanonymize Tor users (network exploits, browser vulnerabilities, traffic correlation)?

The FBI has historically used a small set of technical approaches to deanonymize Tor users: targeted "network investigative techniques" (NITs) that deploy malware or client-side code from servers, exp...

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