01 Check
Find out whether your data has appeared in known data breaches.

Check free of charge whether your email address has appeared in known data breaches.
Your email address is treated in confidence and is not stored.
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Find out whether your data has appeared in known data breaches.
Get an SMS the moment a new breach involves your data.
A leak checker asks whether an email address has appeared in known data breaches.
We combine several threat-intelligence sources to detect signs of compromised digital identities – among them known data breaches and, depending on the source and its availability, information from infostealer and cybercrime data sets.
Addresses and credentials leave an online shop, a booking portal or a service provider, and are in circulation shortly afterwards. Between the break-in and the moment it is noticed there are usually months.
Orders placed and accounts opened in somebody else’s name.
Debits and card charges nobody authorised.
Hours with banks, providers and authorities.
2 data breaches found
Passwords are never shown, in whole or in part.
Antivirus protects the computer against malicious software, and it does that well. A breach, though, happens wherever an address is held – and no program on the device itself reaches that far. Swiss Cyber Guard watches the address, from CHF 9.80 a month.
Packages and prices| Antivirus | Swiss Cyber Guard | |
|---|---|---|
| Protects | The device | The email addresses behind it |
| Against | Viruses and malware | Data breaches at providers |
| Checks | Locally on the device | Continuously against new breaches |
| Speaks up | On a finding on the device | As soon as a new breach becomes known |
Enter an email address above and read whether it appears in a known data breach. No sign-up, no password.