Technical information

6/4 LS PRO OWNER'S HANDBOOK
Using the Security System
Chapter 6
The purpose of the ownership string is to deter theft by making
the provenance of the computer clear.
Logon statistics
The total number and last recorded date of valid logons and invalid
logon attempts are displayed after each successful logon. These
statistics can be reset from the LOC Technology Setup dialog.
This information can aid the detection of attempts to breach
security.
System Identification Number
The security configuration is stored in an area of protected
memory and can only be changed from the LOC Technology
Setup dialog. In exceptional circumstances it may be necessary
to erase the configuration and start from scratch. This can be
done by removing a jumper on the motherboard (see Appendix
A for details).
When the computer is next turned on the security system asks
for the computer’s unique System Identification Number (SIN),
at which point the BIOS Setup utility is started. The SIN
therefore provides a “fail-safe” mechanism in case the jumper
is removed maliciously in an attempt to by-pass security.
Caution
The SIN is printed on a small label stuck onto the motherboard. To
preserve security, this label must be removed and the SIN recorded
in a safe, secure place.
Configuring the security system
The security system is enabled and configured from the LOC
Technology Setup dialog within the BIOS Setup utility. Once
the system is enabled, individual users may be barred from
accessing the BIOS Setup utility and/or the LOC Technology
Setup dialog.