Crypto fraud works because of one feature that also makes crypto useful: a confirmed transfer cannot be reversed. There is no bank to call, no chargeback to file, and often no way to trace where the money went.

The two main ways to store digital assets are hot wallets and cold wallets. The difference comes down to whether the keys touch the internet.

Payment tokenisation is a security method that replaces sensitive payment data, such as a card's primary account number, with a unique string of characters called a token.