Why are multi-billion-dollar companies failing to create ransomware-proof backups?

We keep hearing of big enterprises (Garmin, Edeka) being taken out of business for days or weeks, due to ransomware encryption attacks.
One would assume that it can’t be that hard to create versioned backups that can’t be overwritten from … Continue reading Why are multi-billion-dollar companies failing to create ransomware-proof backups?