Free security resource

Has your email appeared in a known breach?

Check an address you own or have permission to check. A result can help you decide which accounts need attention, but a clear result does not prove an account is secure.

Check known breach records.

The address you enter is sent to an external provider for the lookup. Never enter a password. Do not check someone else's address without permission. Provider details are available in Cookie settings and our Privacy Notice.

Data is provided by Have I Been Pwned. Results cover known records available through this service. They do not show every incident or confirm that someone currently has access to your mailbox.

Choose whether to load this external tool

This external checker receives the information you submit and technical browser information. Review how the provider uses data and cookies in Cookie settings and our Privacy Notice before choosing whether to load it.

The checker is off until you allow Email breach checker in Cookie settings.

Open the breach checker in a new tab if your browser blocks the embedded form. The same external provider handles the lookup.

What to do with the result.

If your address appears

Review the affected service and the information involved. Change an exposed or reused password through the service's official website, and change it anywhere else you reused it. Use a unique password and enable multi-factor authentication where available.

If no breach is found

Keep using unique passwords and multi-factor authentication. Stay alert to unexpected messages and sign-in prompts. An absence of known records is not a guarantee of safety.

If it is a work account

Follow your organisation's reporting process and tell your IT support team. They can help review account activity and appropriate recovery steps. Do not forward passwords or sensitive breach details through an ordinary enquiry.

Need help protecting your accounts?

Talk to CompTech about account security and practical next steps for your organisation.

Contact CompTech