Polish Credentials

Disclosed May 30, 20231,204,870 accountsUnverified

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.

What is known

People affected	1,204,870 (accounts in the leaked data, per Have I Been Pwned)
Disclosed	May 30, 2023
Happened	May 29, 2023
Attack	Credential stuffing
Data exposed	EmailsPasswords
Sector	Tech
Status	Unverified: not yet confirmed by an official notice, a filing or the organization
Check your email	Have I Been Pwned

Sources

Aggregatorhaveibeenpwned.com

Have I Been Pwned: Polish Credentials

Notices filed

Accounts in the dataMay 30, 2023

Have I Been Pwned1,204,870 people

History of this record

Added2026-09-25

First recordedby backfillSource

First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.

Everything about Polish Credentials