Anti-theft security system for Plan Ceibal XO laptop

This work describes the anti-theft security system developed for the XO laptops distributed to all children attending public school in Uruguay. Each laptop checks with a centrally managed and distributed list whether it has been reported stolen; if this is the case, or if it does not perform this checking periodically, the laptop blocks itself. The system is installed and working in more than 220.000 laptops, 1500 servers and thousands of USB memory sticks in all the country. Less than 300 laptops have been reported stolen during the last two years.