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.
Source: HaveIBeenpwned
Source Link: https://haveibeenpwned.com/PwnedWebsites#PolishCredentials