T 2.6 Unauthorised admission to rooms requiring protection

If unauthorised persons enter protected rooms, hazards may be entailed not only by deliberate acts, but also by inadvertence. Disruption is caused merely by the fact that checks must be made for potential damage as a result of the unauthorised access. In this context, domestic rooms used for business purposes should also be considered as security areas.

Example:

Temporary help is employed to substitute for cleaning staff on vacation. The stand-in cleaner, without any instructions to this effect, decides to clean the computing centre. She opens the emergency exit and thus trips the alarm.