OK so we were one of the lucky ones,all set-up / uploads and updates done a few days before Christmas so we weren't affected by the hacking fiasco.
However Y/day it developed some issues. There were 4 games it wouldn't load and only one blue ray would load. After a lot of searching we had to do the master reset which obviously wiped everything ( profiles , games, updates etc)
Starting to add them all again but is going to be quite a task.
May be handy for anyone else having problems.
Has this happened to anyone else.