Weird useful websites

Have I Been Pwned

A practical breach lookup service for checking whether an email address appears in known data breaches.

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What it is

Have I Been Pwned is a useful security wake-up call because it turns vague risk into a personal, checkable result.

Why worth a look

A practical breach lookup service for checking whether an email address appears in known data breaches.

Good for

  • Turning abstract password advice into a concrete check.
  • Explaining why password reuse is risky.

How to start

  1. Search one email address and read each breach summary.
  2. Change reused passwords before investigating less urgent issues.

Best first click

Open Have I Been Pwned and start here: Search one email address and read each breach summary.

Trust facts

Pricing
Unknown
Login required
No
Open source
No
API available
No
License
Terms may change; confirm on the original site.
Risk
Pricing, login requirements, and availability can change; last human check: 2026-07-08.

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