vecvechookattack
It's one thing to be accessing JPA on a secure private network, quite another to be accessing it via a link that includes one or more hops on a public network, such as a satellite link. The standard of security that is required is a significant issue, and given the "issues" on the network when it was being accessed within the MoD's resources, God help us when it some poor sailor/soldier is trying to sort out his pay from 10,000 miles away.
Bear in mind that it's not long ago that guys were getting their CC details hacked after using them on the terminals provided sandy-side.