Depending on the permissions on the accounts they can be pretty powerful. Not just access to eduroam (which all of them have and which is extremely convenient) and full course records including results (also from teacher side!) but also access to many resources such as supercomputer clusters, scientific literature behind paywalls, software licenses (also for expensive things) and many more.

Note that institutions such as ESA, CERN or the local space agencies are also involved in the network. There absolutely are very interesting targets, even if you are a state actor.