Below are the steps to disable the security default
- Go to office 365 admin center > Show all > Identity.
- In the Microsoft Entra admin center, go to the overview > Select the Properties tab.
- At the bottom of the page, under Security defaults, select Manage security defaults.
- In the Security defaults pane, in the drop-down list, select either Enabled or Disabled to enable or disable security defaults.
- Select Save.
Below are the steps to disable multi-factor authentication.
- Go to office 365 admin center > Users > Active users.
- click on the user you want to disable MFA.
- Scroll down Manage multifactor authentication.
- select a user and disable.
Below are the steps to disable Registration campaign.
- Go to office 365 admin center > Show all > Identity.
- In the Microsoft Entra admin center > Protection > Authentication methods > Registration campaign.
- Click on edit and disable then save.
Below are the steps to remove the existing MFA.
- Sign into the Microsoft 365 admin center.
- Show all > choose Identity under admin center.
- On Identity portal >Users > All users > Click on user’s account > Authentication methods > Click on the notification says “Switch to the new user authentication methods experience! Click here to use it now.” and delete the existing Authenticator app by click to the three dots.
Below are the steps to delete all existing MFA to all users.
- Go to office 365 admin center > Users > Active users.
- Click on the user you want to disable MFA. Scroll down Manage user settings > delete all existing app passwords.