Users of the popular phone security app Cerberus are reporting a slightly disturbing email coming from the developers today. While Cerberus assures that no passwords were compromised — they are encrypted, of course — attackers did gain access to some usernames and passwords. If you're using Cerberus, you'll want to change out your password even if you don't get a letter. The full text follows after the break.

Our Security Team recently discovered and blocked suspicious activity on Cerberus servers. The investigation found no evidence that your account was in any way accessed or compromised.

However, the attacker(s) were able to gain access to usernames and encrypted passwords for a subset of our users. No other personal data (emails, device information, etc.) has been accessed.

While the accessed passwords are encrypted, as an extra precaution we have immediately secured these accounts invalidating the current passwords.

Please create a new password by signing into your account at www.cerberusapp.com and selecting the "Forgot password?" option, or go directly here: https://www.cerberusapp.com/forgotpwd.php . Submit the form and you will receive an email with further instructions to set your new password.

After you reset the password, you can verify that no unauthorized commands have been sent to your Android device. Open Cerberus on your device, log in and select the "View Cerberus log" option at the bottom of the app settings.

We sincerely apologize for the inconvenience of having to change your password, we take security of our users very seriously and are constantly working to improve it. If you have any questions, please do not hesitate to contact Cerberus Support at support@cerberusapp.com

The Cerberus Team