Baydöner data breach

From Breaches, in the HARD wiki · Updated
This article is about the March 2026 breach of Baydöner. For every breach, see Breaches.

The Baydöner data breach exposed 1,266,822 accounts from baydoner.com in March 2026. The data taken includes passwords, purchases, dates of birth and government issued IDs and 5 more kinds of data.[1]

Have I Been Pwned verified it and added it to its search on 15 Mar 2026, within a month. It is the 385th largest of the 618 breaches in HARD’s list.

What was exposed

Baydöner’s breach included 9 kinds of data. What each lets criminals do:

DataWhat it’s used for
PasswordsCriminals try leaked passwords on email, banking and shopping sites, because people reuse them.
PurchasesShows what you buy, which makes fake order and refund scams convincing.
Dates of birthUsed to prove who you are to banks and phone companies.
Government issued IDsEnough to open accounts or take out loans in your name.
NamesMakes scam messages personal enough to believe.
Email addressesExpect scam emails that name the company to look genuine.
Phone numbersExpect scam texts and calls, and a higher risk of someone moving your number to their SIM.
GendersPersonal details that make scam messages more convincing.
Geographic locationsRoughly where you live.

What to do

  1. Check whether you’re in it.Search your email address on Have I Been Pwned. It tells you which breaches it appears in, Baydöner among them, without showing the data.
  2. Change your Baydöner password.If the account still exists, sign in at Baydöner (baydoner.com) and change it.
  3. Change it anywhere you used the same one.Start with your email, then banking and shopping. Leaked passwords are tried on other sites automatically, within days.
  4. Use a password manager and two-step sign-in.A different password for every site means one breach can’t open the rest. Two-step sign-in stops a leaked password working on its own.
  5. Distrust messages that mention Baydöner.Scammers use breach data to sound genuine. Don’t click links in emails or texts about the breach; go to the site yourself.
  6. Put a PIN on your phone account.Ask your mobile provider for a port-out PIN, so no one can move your number to their SIM.
  7. Freeze your credit.In the US, free at Equifax, Experian and TransUnion. In Australia, ask Equifax, Experian and illion for a ban. No one can open credit in your name while it’s on.

Timeline

  • : the breach, as best it can be dated.
  • : Have I Been Pwned verifies the data and adds it to its search, within a month.

Similar breaches

Breaches that leaked the same kinds of data, closest in time:

See Breaches for all 618, and Updates for keeping your devices patched.

References

  1. ^ Troy Hunt. “Baydöner”, Have I Been Pwned, added 15 Mar 2026. Breach data licensed CC BY 4.0.