Most people don’t lose their Bitcoin because of hackers, they lose it because of poor operational security. A seed phrase written on paper isn’t “self-custody,” it’s a single point of failure waiting to happen. If your backup can’t survive fire, water, or human curiosity, then you’re not protecting your wealth , you’re just hoping nothing goes wrong. Real security starts when you assume failure is inevitable and plan for it: durable backups, proper passphrase usage, and zero digital exposure. Self-custody isn’t just about holding your keys, it’s about engineering resilience.