Have I Been Pwned

haveibeenpwned.com

Visit Website

Check if your email or phone has appeared in a data breach.

Have I Been Pwned aggregates data from known security breaches and lets you search by email address or phone number. It tells you exactly which breaches exposed your data and what information was compromised.

Why it's useful

Everyone should check this regularly but almost no one does. It covers billions of breached accounts and is maintained by a respected security researcher with full transparency.