My threat tolerance is around a 3 out of 5 on the paranoia scale. What are the practical account management risks of using a flash drive loaded with Tails OS to boot into a Linux PC, which will only be offline when using Tails for account management?
My understanding is that if I boot into Tails via flash drive, after a system shutdown, the Tails OS environment will be sandboxed from the underlying host OS environment. So, if there's software process isolation and partial network isolation would it really matter if the system is intermittently online? Are there any plausible and significant risks to recommend against this approach?
For context, I've been reading this GitBook on Ethereum account management "best practices". Unfortunately, it doesn't go into much depth on this specific variation in the recommended wallet set-ups. Note: I'd prefer not having to buy any additional hardware for this particular use case.