Failed backups + Ransomware = Disaster
"Once your files are encrypted, the only way to get them back is to restore a recent backup or pay the ransom. Problem is, backups often fail. Storage magazine reports that over 34% of companies do not test their backups and of those tested 77% found that tape backups failed to restore. According to Microsoft, 42% of attempted recoveries from tape backups in the past year have failed"