Email Breach Check
See whether your email address appears in known public data breaches. No passwords are ever retrieved or shown.
Why breach exposure matters
A leaked email address on its own is a nuisance. Combined with a password you reused elsewhere, it becomes an account takeover. Attackers take credentials from one breach and try them across other services at scale, which is why a years-old breach can still cost someone their accounts today. Knowing which breaches include your address tells you exactly which passwords to stop trusting.
Frequently asked questions
How do I check if my email has been in a data breach?
Enter your address above. Aletheia queries public breach indexes and reports which known breach records include that address. No password or credential data is retrieved or displayed at any point.
Is it safe to enter my email here?
The address is used only to perform the lookup and is not published or sold. We never retrieve or display credentials. If you would rather not enter an address anywhere, you can search breach names directly on the public indexes themselves.
What should I do if my email appears in a breach?
Change the password on the affected service and anywhere you reused it, enable two-factor authentication, and be alert to phishing that references the breached service. Exposure of an address alone is not an account compromise, but reused passwords make it one.
Does 'no records found' mean I am safe?
No. It means nothing was found in the indexes checked. Many breaches are never published or indexed, so treat a clean result as reassuring rather than conclusive.
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