If I were to try to setup a system with as much security as possible, I'd go with OpenBSD, in a Tempest Room[1], without a direct connection to the Internet. I

If I were to try to setup a system with as much security as possible, I'd go with OpenBSD, in a Tempest Room[1], without a direct connection to the Internet. I don't recall the exact procedure, but there is a way to securely get information into and out of such a system, but it involves CDROMs, not USB memory sticks. [1] https://en.wikipedia.org/wiki/Tempest_%28codename%29 https://en.wikipedia.org/wiki/Tempest_%28codename%29