We know (from support channels) that some users own WD My Cloud NAS devices. You’ll want to update your device firmware as soon as possible, to protect against some nasty back-doors in those devices: https://www.theregister.co.uk/2018/01/08/wd_mycloud_nas_backdoor/
(To be clear – this doesn’t have much to do with UpdraftPlus; just a “community service announcement” !).
David Anderson (lead developer)