: The Polish government’s cybersecurity agency, CERT Polska , along with the Ministry of Digital Affairs, took the unusual step of integrating this specific data into the official service bezpiecznedane.gov.pl . This allowed Polish citizens to check if their specific PESEL (national ID) or email was part of this high-profile "3.5mlnPL" archive.
: Cyber-security researchers and Polish authorities identified a 7-zip archive named 3.5mlnPL.7z circulating on the dark web. 3.5mlnPL.7z
If you believe your information was in this file, you can check reputable breach notification sites like , which frequently indexes these major "combo" archives. : The Polish government’s cybersecurity agency