That depends on how well you separate your MtGox account from your SR account. Since your real identity is linked to your MtGox account, hopefully you run those coins through a mixing service, or two, or three. If you read through my post history (I'm a little too drunk to find the posts myself right now, but some of them are in threads on the front page of the Security section , you'll see that I'm not a fan of encrypted volumes (files, partitions, external media) per se, because they can leak info about their contents onto unencrypted drives, but loading encrypted volumes from Tails is safe, because it is booted in a read-only state and saves nothing, and implements added security featurs like scrambling RAM on shutdown. I think your set up is pretty safe overall. It really all depends on how strong your passwords are. Remember, the security of a 256 bit AES encryption key depends on the bit strength of the password used to encrypt it.