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Data breaches → Baydöner

Was your data in the Baydöner breach?

2026 · baydoner.com · ~1,266,822 accounts exposedCritical severity · 10/10

Baydöner (baydoner.com) suffered a data breach in 2026 that exposed around 1,266,822 accounts. If you had an account, some of your personal data may be circulating in leaked databases. The fastest way to know is to check your own email — free, in about 30 seconds, no password required.

What happened

In March 2026, the Turkish restaurant chain Baydöner suffered a data breach which was subsequently published to a public hacking forum. The incident exposed over 1.2M unique email addresses along with names, phone numbers, cities of residence and plaintext passwords. A small number of records also included Turkish national ID number and date of birth. In their disclosure notice, Baydöner stated that payment and financial data was not affected.

Breach details sourced from Have I Been Pwned, the industry-standard breach database. Risk analysis by Nullivo.

What was exposed, and why it matters

Not all breaches carry the same risk — what matters is which fields leaked. Here is what the Baydöner breach exposed and what each item actually enables:

Government identifiers

The strongest identity-theft material there is — enough to open credit accounts or file fraudulent claims in your name.

Passwords

Attackers replay leaked passwords across other sites (“credential stuffing”). Because most people reuse passwords, one leak often unlocks email, shopping and banking accounts elsewhere.

Dates of birth

Date of birth is a permanent identifier used to verify identity by phone. Combined with a name and address it is often enough to impersonate you.

Phone numbers

Enables SIM-swap attacks (hijacking your number to intercept SMS codes), smishing, and voice scams that appear to come from your bank.

Location data

Reveals where you live, work or travel, which supports both targeted scams and physical-safety risks.

Names and usernames

Links this leak to your other accounts — a reused username lets anyone build a profile of you across platforms.

Email addresses

Puts you on spam and phishing lists, and confirms to attackers that you hold an account with this service — which makes impersonation emails more believable.

Also listed in this breach: Dates of birth, Email addresses, Genders, Geographic locations, Government issued IDs, Names, Passwords, Phone numbers, Purchases.

What to do if you were affected

These steps are ordered for this specific breach — the most urgent action given what leaked comes first.

  1. Government identifiers: Consider a credit freeze or fraud alert with the credit reference agencies, and watch for accounts you did not open.
  2. Passwords: Change this password everywhere you have reused it, starting with your email account — whoever controls your email can reset everything else.
  3. Dates of birth: Never confirm your date of birth to an inbound caller — hang up and dial the organisation back on a published number.
  4. Phone numbers: Move two-factor authentication off SMS to an authenticator app or passkey, and add a port-out PIN with your mobile provider.
  5. Location data: Review location sharing on the accounts you still hold with this service.
  6. Check whether your own email appears in this breach — run a free scan to confirm before you spend time on the steps above.

How urgent is this now?

This breach is recent, so the data is actively traded and the risk is at its highest right now.

Passwords are the reason breach age matters less than people expect. Leaked credentials are compiled into wordlists that get tried against new services for years afterwards, so a password exposed here is unsafe to use anywhere, ever again.

Remember: a breach can't be "un-leaked" — once a database is out, it exists in countless copies. The goal is to make the leaked data useless: change what can be changed, lock down what can't, and remove what has been republished.

Check if your email was exposed.Nullivo's free scan checks your own verified email against known breaches — including Baydöner — in 30 seconds. No password, no signup, and we only ever scan your own email. Run your free scan →

Frequently asked questions

What data was exposed in the Baydöner breach?

The Baydöner breach exposed government identifiers, passwords, dates of birth, phone numbers, location data, names and usernames, email addresses. The strongest identity-theft material there is — enough to open credit accounts or file fraudulent claims in your name.

How many people were affected by the Baydöner breach?

Around 1,266,822 accounts were exposed, making it a large breach.

What should I do if I had a Baydöner account?

Consider a credit freeze or fraud alert with the credit reference agencies, and watch for accounts you did not open. You can check whether your own email appears in this breach with a free Nullivo scan — no password required.

Breaches that exposed similar data

If the Baydöner breach affected you, these breaches exposed comparable information — worth checking too, since leaked datasets are routinely combined.

See all breaches we cover →