I was in the middle of writing a piece on how to safely dispose of a seed phrase when the Coldcard news broke. I don't even own a Coldcard, but it still rattled me.

Because I could easily have been on that list of drained wallets. I had been trusting a single wallet provider as well, basically since I got into Bitcoin.

I now set up a multi-sig wallet after postponing for years. 😎

It pushed me to dig into the alternative: generating a seed phrase manually from real physical randomness that you can watch and verify.

There are solid resources out there, but I couldn't find one article that pulled together the reliable methods in one place. So I wrote one.

It covers coin flips, dice, playing cards, and Penlock.

If you've been meaning to create a new wallet with entropy you can actually verify, I hope this helps.

Feedback welcome.