WannaCrypt and others crypto trojans


Is there any possibility to defend from crypto trojans with Nextcloud and Nextcloud clients?
I know there is versioning and history, but I smbdy has 5 GB quota and it is almost full the client will send crypted files and there will be no history for all files.


There are two apps that you can try:

It can protect against known malware (it’s not that bad, this way you only have to care about the client and don’t have to restore tons of data from backup). The only real protection are backups.