2 articles by Marcus
PRODUCT
An exchange wallet isn't just a wallet
If you are running an exchange, fintech or any product that holds balances for other people, you need more than storage. You need custody you can defend and a ledger you can prove.
PRODUCT
Velocity controls, explained without the jargon
Why "how much can move in 24 hours" is the most underrated security control in self-custody, and how to set it so it protects you without getting in your way.

