Security experts have suggested precautionary measures for dealing with ransomware. Using software or other security policies to block known payloads from launching will help to prevent infection, but will not protect against all attacks As such, having a proper backup solution is a critical component to defending against ransomware. Note that, because many ransomware attackers will not only encrypt the victim's live machine but it will also attempt to delete any hot backups stored locally or on accessible over the network on a NAS, it's also critical to maintain "offline" backups of data stored in locations inaccessible from any potentially infected computer, such as external storage drives or devices that do not have any access to any network (including the Internet), prevents them from being accessed by the ransomware. Moreover, if using a NAS or Cloud storage, then the computer should have append-only permission to the destination storage, such that it cannot delete or overwrite previous backups.