Cheap solution when the notebook is in a relatively unprotected environment is ...

The notebook lock is a good solution if you do not always want to take the work out of the notebook Cubicle, but actually any colleague or visitor can do it for one, even if you would prefer verweiden.

The castle is relatively safe, well finished and for an environment as well usable as described above. Like any bike lock, it is crackable in all public spaces. So do not connect the laptop to the bicycle nd both leave unattended at the station bicycle parking, otherwise both could be gone.