A numbered bank account is a type of account where the account holder is identified by a number rather than their name. This provides a high level of privacy and confidentiality for the account holder, as the bank does not disclose the identity of the account holder to anyone, including tax authorities or other banks. Numbered bank accounts are often used by individuals who wish to keep their financial affairs private or by international businesses seeking to protect their assets. These accounts are typically offered by offshore banks in jurisdictions known for their strict banking secrecy laws.