Chapter 4. SecurityThis chapter contains the following topics:• “Locking your computer” on page 31• “Viewing and changing security settings in the Setup Utility program” on page 33• “Using passwords and Windows accounts” on page 33• “Using fingerprint authentication” on page 34• “Using the cover presence switch” on page 34• “Using firewalls” on page 35• “Protecting data against viruses” on page 35• “Computrace Agent software embedded in firmware” on page 35• “Trusted Platform Module (TPM)” on page 35• “BIOS guard” on page 35Locking your computerThis section provides information about locking your computer with the locking devices to keep yourcomputer safe.Locking the computer coverLocking the computer cover helps prevent unauthorized people from gaining access to the inside of yourcomputer. Your computer comes with a padlock loop and might also come with a key lock that is built intothe computer cover. The keys for the key lock are attached to the rear of the machine. For security, store thekeys in a secure place when you are not using them.Note: The key lock and keys are available only on some models.© Copyright Lenovo 2016 31