Or maybe you can just be clear and point out how my approach of cold storage will be hackable.
Saying no procedure is 100% safe sounds like speculation to me.
So you can say... with 100% certainty... that there are no "bugs, glitches, backdoors, ... etc that either allows them to be hacked or they screws up on their own, or both." in RAR software... with it's closed sources?

And for the record... your method would probably fail the "$5 wrench attack":
