Every day it seems we run into another contender for our 'Laptop Losers Hall of Shame'. This dubious honour is for government agencies, corporations and colleges that fail to safeguard the personal information of their employees and customers. These security breaches cause harm and embarrassment to citizens and put them at risk for identity theft. Encryption software can prevent most of these incidents. Here's a list of the 10 biggest (known) security breaches from lost or stolen laptops, according to a chronology of data breaches compiled by the US Privacy Rights Clearinghouse. We're counting down to the worst laptop theft of all time. Can you guess who the "winner" is?