The backup ran every night. Nobody had ever restored it.
Illustrative case: a machine builder with 60 employees. Name and details are invented, the pattern is typical.
The managing director was certain: the IT partner backs up all data every night. That was true. The check showed, however, that nobody had tested a full restore in three years, and that the backup sat in the same network as the servers. Ransomware would have hit both at once.






