"The Steel Plate Prepper"

This person considers paper to be weak. They don't store their Seed Phrase (12/24 password words) in a notebook, let alone on their phone. They engrave their passwords onto fireproof, rustproof, and waterproof steel plates. Some even bury the steel plates in secret locations in the forest or divide them into three fragments (Shamir's Secret Sharing) that are spread across three different continents. For them, the main enemy is not hackers, but house fires, earthquakes, or nuclear apocalypse.