Hi, i have a nano s, and the 20 word keyphrase. Does anyone know a best practise for safe storage of the paper copy key phrase? im thinking putting it in an ip68 enclosure, placed inside a fireproof safe, but this doesn't protect from heat, which the paper and ink may succumb to. are there label makers or other methods that can be used for the heat issue?
You need a personal wallet that will let you control the private key, if you store your coins on an exchange they control the private key instead of you. Generally it is good practice to keep your private key off of the internet.
He is already using a hardware wallet not an exchange.