Check whether your email address has turned up in a known data breach. Free, private, instant.
Checking your email against known breaches…
Your email wasn't found in any breach we track. Stay vigilant — new breaches appear regularly.
Set up free alerts →It appeared in the records below. Here's what to do about it.
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and everywhere you reused it — email, banking, payments first.
an authenticator app beats SMS. A stolen password is useless without it.
one strong password per account — reuse is why breaches cascade.
most fraud appears within 30 days. Set alerts, freeze credit if needed.
it may be leaked even if your email is clean.
Check now →A few of the verified leaks in our index. New breaches are added as they surface.
| Breach | Records | Year | Exposed |
|---|---|---|---|
| Synthient Credential Stuffing Threat Data | 2.0B | 2025 | Email addresses, Passwords |
| Collection #1 | 772.9M | 2019 | Email addresses, Passwords |
| Verifications.io | 763.1M | 2019 | Dates of birth, Email addresses, Employers |
| Onliner Spambot | 711.5M | 2017 | Email addresses, Passwords |
| Data Enrichment Exposure From PDL Customer | 622.2M | 2019 | Email addresses, Employers, Geographic locations |
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