A paper wallet is a way of storing cryptocurrency in which the public address and private key are printed out on paper. It is a form of cold storage that is kept offline, away from the internet.

Identity verification is the procedure of confirming a user's personal data on an exchange or service. It is needed for account security and access to withdrawing funds.

AML (Anti Money-Laundering) is a set of legal and technical measures designed to prevent the legalization of illegally obtained funds through cryptocurrency services and exchanges and to make the industry more transparent.

A 51% attack is a scenario in which more than half of a network's computing power is controlled by a single participant or group, which theoretically makes it possible to manipulate transaction confirmation.