Use cases
Who is 404 for?
Every anti-detect browser on the market is built for bots. 404 is built for people with real reasons to control their fingerprint.
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Journalists
Reporting patterns leave a fingerprint trail that can connect your browser identity to investigations, sources, and your newsroom across sessions.
Source protection · Research confidentiality · Newsroom security
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Legal professionals
Case research builds a recognizable browser profile that can expose repeated activity, work product focus, or client matters to the sites you're visiting.
Work product protection · Client confidentiality · Competitive intelligence
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Research organizations
Teams monitoring the same sites repeatedly become easier to identify over time, even when IP addresses and networks change between sessions.
OSINT workflows · Attribution control · Institutional security
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Human rights organizations
For staff operating across borders or in hostile jurisdictions, a stable browser identity is an operational security risk, not just a privacy one.
Staff safety · Operational security · Hostile jurisdiction protection
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Don't see your use case?
If your work involves sensitive research, client confidentiality, or operating in adversarial environments, 404 was probably built with you in mind. Let's talk about how it fits.