Securing Your Computer 63your computer (see "Turning Off Your Computer" on page 139) and tryagain.3 Enter the system setup program (see "System Setup" on page 75).4 Press the down-arrow key to move to the Security option.5 Press to access the menu.6 Use the down-arrow key to select Intrusion Alert.7 Use the left- and right-arrow keys to select Reset, and then choose On,On-Silent, or Disabled.NOTE: The default setting is On-Silent.8 Restart the computer and implement your changes.Security Cable LockUse one of the following methods to secure your computer:• Use a padlock alone or a padlock and looped security cable with thepadlock ring.A padlock alone prevents the computer from being opened.A security cable looped around a stationary object is used in conjunctionwith a padlock to prevent unauthorized movement of the computer.• Attach a commercially available antitheft device to the security cable sloton the back of the computer.NOTE: Before you purchase an antitheft device, make sure that it works with thesecurity cable slot on your computer.Antitheft devices usually include a segment of metal-stranded cable withan attached locking device and key. The documentation that comes withthe device contains instructions for installing it.
