Extend Microsoft 365 F5 licensing with identity, endpoint, email and cloud-application security controls for frontline and distributed users. M365 F5 Security Add-On combines Microsoft Entra ID P2 with Microsoft Defender capabilities that help security teams investigate identity risk, protect endpoints, inspect email threats and monitor cloud-app activity. Its 1-year term supports annual cloud-subscription planning for Microsoft 365 F5 environments. Microsoft Defender for Endpoint Plan 2 contributes endpoint detection and response functions, while Microsoft Defender for Office 365 Plan 2 adds protection and investigation capabilities for email and collaboration workloads. Microsoft Defender for Identity helps surface identity-related signals from on-premises Active Directory environments, and Microsoft Defender for Cloud Apps provides visibility and policy controls for cloud-app use. Microsoft Entra ID P2 adds advanced identity protection and access-governance capabilities. Order 5F3D0C71C490-1Y when the requirement is the security add-on rather than a productivity suite or standalone endpoint product. This subscription concentrates the security services used around Microsoft 365 F5 accounts and devices, including identity, endpoint, messaging and cloud-app coverage. It suits deployments where frontline users need stronger threat detection and conditional access controls without changing the underlying Microsoft 365 F5 licensing foundation.