Paper wallet in a safe deposit box ftw lol
A safety deposit box is only as safe as those working at the bank.
I would have to disagree with this.
First of all, contents of a safe deposit box should be "tamper evident." Google that it will become clear that any prowling in that box can and should be detected. Yes that can include taking pictures of anyone opening the box, using a cam that doesn't look like a cam.
Important contents should not be obvious. A paper wallet should not be on a piece of paper that shouts "BITCOIN KEYS." It might be engraved on something that looks like a family heirloom. Johnny's First Communication certificate. Etc.
They could be on a page that looked like a listing of bank account numbers, split into pieces.
These things would not stop a determined attacker that already knew you had a stash, so one additional level of security is needed.
That is the encoding of the private key with a key phrase that only you know.
At this point you have
1. A box that does not appear to have any bitcoin paper wallets.
2. one object of many in the box that has the keys or sequences.
3. The key needs another part that is not in the box.
4. The box has tamper evident contents, hence an intruder is detected.
