Clerk’s Two Factor Authentication (or Multi-Factor) Authentication (MFA) add-on allows you to receive verification codes all consolidated in Slack. 2FA/MFA Use-Cases
2FA SMS - the standard use-case where simple text-based messages are supported (Does NOT require add-on)
Physical Device Validation (2FA Add-on Required) - This is usually required for Banks and highly sensitive websites as they do not support virtual phone numbers. By using Clerk you are able to receive verification right in Slack.
For example, the following sevvices require Two Factor Authentication Add-on: