https://www.bleepingcomputer.com/news/security/university-loses-77tb-of-research-data-due-to-backup-error/

The Kyoto University in Japan has lost about 77TB of research data due to an error in the backup system of its Hewlett-Packard supercomputer.

The incident occurred between December 14 and 16, 2021, and resulted in 34 million files from 14 research groups being wiped from the system and the backup file.