You're conflating offsite data backups with some sort of system backups. Then you have to start over with fresh, sterile, secured systems and good data by havin

You're conflating offsite data backups with some sort of system backups. Then you have to start over with fresh, sterile, secured systems and good data by having multiple, regular data backups. Don't bother trying undo compromised systems because you'll never win that game.