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Avast.com data breach

448,870 records Breach date: May 2014

Exposed data

Email addressesUsernamesPasswords

In May 2014, Avast.com suffered a data breach. The dataset indexed by LeakCheck contains 448,870 records.

The leaked records include email addresses, usernames and passwords.

If your data appears in this dataset, any account that shares the same password is at risk. Run a free check below, and if you find yourself in a leak — change the affected passwords and enable two-factor authentication.

Check if your account is affected

Enter your email, username or phone number — the check is free and confidential, and the result will tell you whether this breach mentions you.

Exposed in this breach? Do this now

Change the password

On the breached site and everywhere else you reused it. Make every password unique.

Enable 2FA

A second factor keeps a leaked password from becoming a hijacked account.

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Avast.com breach: questions and answers

When did the Avast.com data breach happen?

The Avast.com breach dates to May 2014.

How many records were leaked in the Avast.com breach?

LeakCheck has indexed 448,870 records from the Avast.com breach.

What data was exposed in the Avast.com breach?

The leaked records include email addresses, usernames and passwords.

Were passwords exposed in the Avast.com breach?

Yes. The indexed Avast.com records include passwords, in plain text or hashed. If you had an account, change that password and every other password you reused.

How do I check if my data was in the Avast.com breach?

Enter your email address, username or phone number in the search form on this page. The free check shows whether your data appears in the Avast.com breach — and in any of the other 1,468 sources LeakCheck indexes.

What should I do if my data was in the Avast.com breach?

Change the password you used on Avast.com and everywhere you reused it, turn on two-factor authentication, and watch for phishing that quotes details from the leak. To hear about the next breach first, set up breach monitoring.