Over 200,000 files containing sensitive personal information from the University of Warsaw have been leaked online. The University of Warsaw cyberattack, which targeted the institution's digital systems, resulted in the publication of the stolen data on the darknet in mid-April 2026.

The cyberattack on Warsaw University, one of Poland's most prominent educational institutions, occurred over several months, with attackers systematically copying files from university servers between January and February 2026. The stolen data was then posted on the darknet on the night of April 15, 2026, in a large 850-gigabyte data dump. Among these files were approximately 32,800 documents believed to cont...