If employees only need mobile IT systems in exceptional cases (e.g. for occasional business trips), it is often more practical to keep a small number of laptops. These can then be shared. However, if a laptop is simply handed over to the next employee, there is the risk that sensitive data still on the device will be passed on. The laptop could also be infected with malware. Without suitable regulations, it can be difficult to trace who has used the laptop and when, or who is currently using it.