Which authenticator is NOT used for initiating self-service account recovery?

Duo Security is primarily a multi-factor authentication (MFA) solution used to enhance security by requiring users to provide additional verification factors during the authentication process. It operates in conjunction with a primary authentication method to confirm user identity.

In the context of self-service account recovery, tools like Okta Verify (Push), Phone, and Email serve as channels through which users can receive recovery codes or links to regain access to their accounts. These methods are designed to facilitate the process of account recovery by verifying the user's identity through previously established channels.

On the contrary, Duo Security does not inherently facilitate the account recovery process itself; instead, it focuses on securing authentication attempts with additional verification. This distinction is what sets Duo Security apart in the context of self-service account recovery methods.