it is quite sad to see how the assets that you have worked so hard to hold but in the end cannot be accessed just because you mistakenly thought that when you wrote down the private key on paper and kept it at your home it was the safest. however, writing down the private key on a stainless steel plate is one of the best ways to secure the private key from such things, because stainless is durable, rustproof, fireproof, and various other advantages. a person can use this stainless plate to write down their private key and secure it at their home or other place.