According to Mohamed Hassan (a security expert and IT professor) Samsung has admitted to shipping laptops with covert, undisclosed keyloggers installed, there to "monitor the performance of the machine and to find out how it is being used." Their PR department refuses to discuss the issue: "In other words, Samsung wanted to gather usage data without obtaining consent from laptop owners."
(via /.)
Update:: Samsung denies it.
Update 2: Brian Krebs believes them