One has to ask
If Obama ("most powerful man in the world", ahem) can be told he's NOT having a Blackberry until it can be made secure, can the CESG or one of the appropriate boffins dealing at the time with the then cabinet minister for NI not insist that his computers are adequately secured and be allowed to enforce this in the same way as is best practice in the private sector?
It really could be life threatening stuff that Hain probably have had on his computer, and I am sure that some people could be feeling a little nervous at the thought that some data was available where it shouldn't be.
Of course there is every chance that such a policy is/was in place, in which case it is worrying that
1) it was hacked, and
2) it took a totally unrelated enquiry, years later, to discover this possibility.