post
https://api.linode.com//profile/tfa-enable
Generates a secret key for your user. To enable two-factor authentication (2FA), enter this secret into your third-party authenticator application. To complete the 2FA setup, use the Enable two-factor authentication operation to enter a one-time passcode (OTP) from your authenticator app. Once enabled, logins from untrusted computers are required to provide an OTP before they are successful.
Run the Answer security questions operation.
linode-cli profile tfa-enable
<https://techdocs.akamai.com/cloud-computing/docs/getting-started-with-the-linode-cli>account:read_write
<https://techdocs.akamai.com/linode-api/reference/get-started#oauth>