One of the ways these encryption malware thingies work is by essentially attacking all the "drive letters" attached to the system.
One of the ways to be able to recover from encryption attack is to have your backup on a "disconnected" backup service, something that isn't a "drive" on your computer.
The most common of this is going to be a simple cloud backup tool. Something like CrashPlan, BackBlaze, SpiderOak, Carbonite, etc.
But there are some cases where it's not very practical to use cloud backup. Perhaps there is too much data, the files are too large, the bandwidth isn't available, etc.
This leaves the average person with a couple options, something like, connecting and disconnected USB drives or whatever, leaving them detached for the most part.
What is the best local type of backup that is immune to an encryption attack yet doesn't require manual intervention such as connection/disconnecting USB?
The attack this weekend worked over SMB, attacking the entire network, so I don't think having a network drive (to avoid a local drive letter) is an adequate solution any more.
So what are all the options for backups that can be done on a local network and be immune to an encryption attack?