TISZA Világ data breach: 198K accounts exposed
Severity: high · Patch status: no-fix-needed · Since 2025-11-08
In late October 2025, data breached from the Hungarian political party TISZA was published online before being extensively redistributed. Stemming from a compromise of the TISZA Világ service earlier in the month, the breach exposed 200k records of personal data including email addresses along with names, phone numbers and physical addresses. Exposed data: email addresses, names, phone numbers, physical addresses, usernames. The breach dates from Oct 6, 2025; Have I Been Pwned loaded it on Nov 8, 2025.
What to do
- If you had a TISZA Világ account, change its password and the password of any other account that reused it.
- Turn on multi-factor authentication wherever it is offered.
- Check whether your addresses are in this breach at https://haveibeenpwned.com.
- Expect targeted phishing that quotes the leaked details; verify any unexpected contact out of band.
Sources
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