I thought about dropbox/icloud/btsync etc...

but then what if they backup to one of those, and a virus comes along and fecls with their files again, and the infected ones are uploaded/updated ?

I've used the dropbox "older versions" thingie loads of times, and it's bloody handy... but I'm assuming if they do a 30gig backup it won't keep the older version for long ?


plus, they're a bit noob, and wan't something super easy/reliable

if they can upload a drive image once a week, and keep each one for a month or so they'll be sorted

I've googled, but all the ones I've found use something similar to dropbox :-(