To control access to your system, you must maintain the physical security of your computing environment. For example, a system that is logged in and left unattended is vulnerable to unauthorized access. The computer's surroundings and the computer hardware must be physically protected from unauthorized access at all times.
The ZFSSA is intended for restricted access whereby access is controlled through the use of a means of security (for example, key, lock, tool, badge access) and personnel authorized for access have been instructed on the reasons for the restrictions and any precautions that need to be taken.