What this tool checks
- Known breaches containing the address
- Breach dates
- Types of exposed data (password, phone, address…)
- Risk level
- Recommended steps
How to use it
- 01
Enter your email address.
- 02
Press Check.
- 03
If passwords were exposed, change that password everywhere you used it and turn on multi-factor authentication.
Technical details
Data source
The query is passed to a service that indexes public breach datasets. The address is not stored on our server, not cached and not written to access logs.
Risk level
The number of breaches and the types of exposed data are assessed together. Breaches containing passwords, financial or identity data raise the risk.
What the result means
“Not found” doesn't guarantee the address has never leaked; it only means it doesn't appear in known, indexed breaches.
Frequently asked questions
My address appears in a breach — was my account taken over?
Not necessarily. The breach shows that your data at that service leaked. If you reused the same password elsewhere, the risk is high; change it now.
Can I check someone else's address?
The tool only shows whether an address appears in public breach lists. We recommend checking your own or your organization's addresses.
How can we monitor all our company addresses?
Domain-wide breach and leak monitoring is part of our threat intelligence and dark web monitoring service.
Can I check my password too?
Yes. The breach check in the Password Security Checker queries your password with k-anonymity, without sending it.