The University's internet connection is provided by the UK's research network JANET. It is a condition of our connection that we are able to trace misuse of the network to an individual if requested.
Our logging is described in the University's Regulations, section 11.
As part of this, we log all internet usage on campus, including that via eduroam (the wireless network). The logs include the amount of data used and the websites accessed. Logs are kept for 90 days only. This period was chosen after discussion as a balance between the need to keep records for the purposes discussed below and the right of our users to privacy.
As stated above, access to the logs for investigations is managed under the terms of the Investigations Policy. The University only conducts investigations where "there is a business reason for doing so and if the investigation can be show to be justifiable, fair, proportionate and comply with UK legislation". It does not conduct "fishing" trawls of the data.
Additionally, we use software to scan the logs to detect virus infected machines and other malware and misuse. This is an automated process and is concerned with looking for malware only.