Exness accounts offer several security types to verify the identity of the account owner and protect sensitive information. These security types include phone, email, and TOTP (available only in certain countries). Each account action requires a six-digit code, sent to the chosen security type, to be entered for confirmation. Only one security type can be active at a time, but changes can be made under certain conditions. Additionally, a unique alphanumeric Support PIN is generated to act as the highest level of security. This PIN is used to verify the account owner when contacting support, ensuring that sensitive information is accessible only to the true account owner.