Data breach
Polish Credentials
1 204 870 accounts exposed in a breach dated 2023-05-29.
Breached2023-05-29Added to HIBP2023-05-30 UTCUpdated by HIBP2023-05-30 UTCAccounts1 204 870Domain—
Verified
What happened in Have I Been Pwned’s words
In May 2023, a credential stuffing list of 6.3M Polish email address and password pairs appeared on a local forum. Likely obtained by malware running on victims' machines, each record included an email address and plain text password alongside the website the credentials were used on. The data included 1.2M unique email addresses.
Exposed data as HIBP classifies it
- Email addresses
- Passwords
How HIBP qualifies it
- HIBP verified that the data came from this service.
HIBP names no domain for this breach.
Source: Have I Been Pwned (CC BY 4.0)
Copied from HIBP 2026-11-05 03:50 UTC