It seems that truly usable hardware encryption is beginning to emerge as a practical data safeguard. Seagate DriveTrust Technology integrates encryption into the drive itself by using the unaddressable part of the drive to store the encryption keys, unlike software encryption where you have keys floating around the OS.
This certainly makes laptops more secure, but data recovery will be much more complicated if the drive becomes damaged. However, it seems that hardware encrypted laptop drives will become common in a couple years with a large manufacturer like Seagate committed to the technology.
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