BannerBit data breach

Breach date: 2018-12-29. Added to this index: 2019-01-08. Accounts affected: about 213K. Domain: bannerbit.com.

What happened

In approximately December 2018, the online ad platform BannerBit suffered a data breach. Containing 213k unique email addresses and plain text passwords, the data was provided to HIBP by a third party. Multiple attempts were made to contact BannerBit, but no response was received.

Breach data sourced from Have I Been Pwned, used under CC BY 4.0. Additional breach metadata provided by XposedOrNot. DataExposed is an independent service and is not affiliated with or endorsed by either.

What was exposed

Email addresses: The email address you used to register or log in. It is the most common field in breaches because it doubles as your username on most sites.
Passwords: The secret you use to sign in, stored by the breached service either in plain text, in a scrambled form called a hash, or encrypted. How it was stored decides how quickly it can be recovered.

What to do now

Check whether your own address is in this dataset with the free email breach check.
Change the password on this service and every other site where you used the same password.
Turn on two-factor authentication on your email account first, because it is the reset path for everything else.
Treat calls and messages that quote real details about you as hostile until you verify them another way.

Frequently asked questions

What data was leaked in the BannerBit breach?

The BannerBit breach exposed Email addresses, Passwords. About 213K accounts were affected.

Was I affected by the BannerBit breach?

Run the free email breach check with the address you used on that service. It will tell you whether your address appears in this dataset.

What should I do about the BannerBit breach?

Change the password on that account and everywhere you reused it, then turn on two-factor authentication. Passwords from this breach are traded and tried automatically against other sites.