what is the term for the confidential code that gives access to and control over a cryptocurrency wallet

The term for the confidential code that gives access to and control over a cryptocurrency wallet is called a private key. The private key is a unique alphanumeric code that acts as a secret password allowing the wallet owner to authorize transactions and manage their digital assets. Without this private key, access to the wallet and its funds is impossible, and losing it means losing permanent access to the cryptocurrency stored in the wallet. Safeguarding the private key is essential for security and ownership control of cryptocurrency wallets.