
esrqy (esrqy) asked a question.
Dear Support,
I have recently received this message from Slack, it is about their policy changes that will enforce Single Sign On for their platform.
I am worndering if this will make changes in our extisting way to access via Okta using SAML Single Sign-On method with Multi-factor authentication.
In attachment the received email:
"We are contacting you to let you know that beginning September 26, 2023, owners and admins on Slack paid plans will be required to set up two-factor authentication. Two-factor authentication (2FA) adds an extra layer of security to your account by requiring an authentication code from your phone whenever you sign in. On paid plans with SSO enabled, only owners and admins who are able to sign in via email and password will be required to set up 2FA.
Our records indicate that you haven’t set up 2FA for your account on E-Flux. Please take the time to do that now by following the instructions here in our Help Center: https://slack.com/help/articles/204509068.
If by September 26th you have not set up 2FA, you may be signed out of your account and asked to set it up and configure your 2FA settings at https://my.slack.com/account/settings*two_factor before being able to sign in to your workspace or org. If signed in to more than one workspace, please click “Workspaces” at the top of your account settings page and select the workspace that needs 2FA set-up.
If you have any questions about setting up two-factor authentication or need assistance, you can reply directly to this email or contact us at feedback@slack.com and we'll be happy to help!
Thanks,
The team at Slack

Hi @esrqy (esrqy) , Thank you for reaching out to the Okta Community!
I would recommend reaching out to Slack for clarification on this matter.
As far as I can tell, this isn't an issue. The mandatory MFA policy would affect only non-SSO users.
https://slack.com/help/articles/212221668-Mandatory-workspace-two-factor-authentication-
Assuming you are following best-practices, you would already have MFA enabled on the Okta side.
If you haven't already, please review the following documentation:
For the Okta Classic Engine:
https://help.okta.com/en-us/Content/Topics/Security/mfa/mfa-home.htm
For the Okta Identify Engine:
https://help.okta.com/oie/en-us/Content/Topics/identity-engine/authenticators/configure-authenticators.htm
https://help.okta.com/oie/en-us/Content/Topics/identity-engine/authenticators/authentication-main.htm
If my answer helped, remember to mark it as best to increase its visibility for other members of the Okta Community who might have the same questions as you.
Hope my answer helps!
--------------------------------
Okta Identity Engine (OIE) Ask Me Anything: Get answers from product experts by clicking here.