Breach Database / BannerBit

Yes — BannerBit was breached.

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.

What data was exposed

What to do right now

  1. Change your password for this service now. And change it anywhere you reused the same password — attackers try leaked passwords on other sites within hours ("credential stuffing").
  2. Turn on two-factor authentication. Even a leaked password is useless against an account protected by a second factor. Prefer an authenticator app over SMS.
  3. Expect convincing phishing emails. Attackers use breached details to write personalized emails. Be suspicious of any message referencing this service.
  4. Check your other accounts on Have I Been Pwned. Your email address may appear in other breaches you don't know about yet.
  5. Monitor the apps you use going forward. Clearly watches the breach record for the companies behind your apps and alerts you the moment one appears.

Breach data from Have I Been Pwned. Listing here means the service appears in the public breach record — not that your personal data was affected.