I would recommend you think critically about what you’re trying to accomplish first and foremost then implement the simplest system that has the fewest points of failure.

Apologies for the account change, credential rolling schedule waits for no man.

Yes, it’s device firmware.

Again, if you would like a more practical approach based on the experience of being robbed I will gladly volunteer it.

Yes. It all works by default. The ones you want to use for a cache device are m10, they come in 16, 32 and 64gb sizes.