"It's not just notebooks that get stolen." Very good point. I guess I've been working in environments with datacenters too long. :) "I'm also considering the

"It's not just notebooks that get stolen." Very good point. I guess I've been working in environments with datacenters too long. :) "I'm also considering the corporate or government espionage vector, where you have a reasonably skilled on-site attacker trying to read or modify the disk contents." Again though, that only protects you if the disks are out or the machine is down. If you have someone with that level of skill within your organization, they'll likely gain access to the running computer where the data has already been made accessible in decrypted form.