An Azure AD Conditional Access Policy for Guests that requires acceptance of Terms of Use for the Registration of Security Information.

Suggested name:
CA4{XX}-Guests-IdentityProtection-RegisterSecurityInfo-TermsOfUse

Assignments

Users

Users and groups  
Include users All guest and external users

Cloud apps or actions

User actions
Register security information

Access controls

Grant access  
Require Guest Registration Terms of Use

References

https://learn.microsoft.com/en-us/azure/architecture/guide/security/conditional-access-architecture https://learn.microsoft.com/en-us/azure/architecture/guide/security/conditional-access-framework https://learn.microsoft.com/en-us/azure/active-directory/conditional-access/concept-conditional-access-policy-common