Security
Keys, seed phrases, custody and the scams that cost people the most.
- 01Seed phrases and self-custody: holding your own keys without losing thembeginnerSelf-custody means no one can freeze your coins and no one can recover them for you. This lesson covers what a seed phrase actually is, how to back it up so it survives fire and forgetting, and the choices that decide whether self-custody is safer than an exchange for you.4 min read
- 02Exchange account security: closing the routes attackers actually usebeginnerExchange accounts are rarely hacked through the exchange. They are taken over through the email, phone number and browser attached to them. This lesson closes each route, in order of how often it is used.4 min read
- 03Token approvals and signing safety: what you agree to when you click confirmintermediateA hardware wallet cannot save you from a signature you chose to give. Most on-chain theft today is not a stolen key but a granted permission — an approval or a signed message that lets a contract drain a wallet later. This lesson explains what each prompt means and which ones to refuse.5 min read
