Which approach can help in managing user identities across different platforms and services?

The approach of Identity-as-a-Service (IDaaS) is particularly effective for managing user identities across different platforms and services because it provides a cloud-based solution for identity management. IDaaS enables organizations to centralize their identity management processes, allowing for seamless access to various applications and services, often through a single sign-on (SSO) mechanism. This centralization not only simplifies user authentication but also enhances security by ensuring consistent identity governance and quicker responses to identity-related incidents.

IDaaS solutions often integrate with multiple applications and platforms, including those that are on-premises and those hosted in the cloud. This capability allows organizations to maintain a unified view of user identities, streamline provisioning and deprovisioning processes, and maintain compliance with identity policies across diverse environments.

In contrast, options like identity governance focus more on policies and procedures related to the management of identities rather than providing the tools for identity management across multiple platforms. Access certification is primarily concerned with verifying that user permissions and access rights are appropriate based on current roles, but does not directly facilitate the management of identities. Password policies, while important for security, are specific to user authentication and do not address the broader identity management challenges that arise when operating across multiple platforms and services.