Net provides a RC5DES client. SaveTheLaptop offers Linux and Windows client programms. Theft Protection Prerequisites Don't buy a second hand laptop, without a receipt of the original purchase. Don't pay in cash, when buying a second hand laptop, use a cheque instead. Use a lock to save your machine.
Most modern laptops are prepared already to connect to a lock.
Use an engravement to mark your equipment with an unremovable sign. When using a special laptop bag for transport, be aware everybody knows what precious equipment you have. Encrypt your harddisk. Use BIOS password protection. Just in case have the data of your machine stored in a save place, e.g. full model name and number, serial number.