LAlarm is a free laptop alarm. LAlarm emits a loud alarm sound when a thief tries to steal a laptop and it recovers and destroys sensitive data if the laptop is stolen. Besides, it alarms when the battery is under stress in order to preserve the battery capacity and prolong the battery lifetime. It also alarms when the battery level is low to prevent data loss due to sudden power loss. Moreover, it sounds an alarm when a laptop is outside a predefined safe perimeter or left unattended in an unsafe place.