I travel with my laptop, so it can be stolen rather easily. The thief can then read all of my private messages at their leisure. I expected better security from Signal. Sure, I can take additional steps to protect myself, but I didn't know I needed to with Signal. 

 Encrypt your hard drive?! 

 I already use encrypted vaults, but I guess I need to encrypt the whole partition/drive too. My point is this should not be necessary for a security-focused app like Signal. 

 Edit: I should have said "privacy-focused" in the previous post.