Protect Windows, macOS, Android, iOS, and Linux endpoints with prevention-focused security controls from Microsoft Defender for Endpoint P1. The plan combines antivirus and anti-malware protection with attack surface reduction capabilities intended to reduce exposure to common endpoint attack techniques. Web protection helps block access to malicious or unsafe web destinations, while device control policies help administrators govern removable-storage use on managed devices. Defender for Endpoint P1 fits organizations standardizing on Microsoft security controls and seeking a policy-driven endpoint protection layer for employee systems. Administrators can apply security settings across enrolled devices, use cloud-delivered protection intelligence, and establish baseline controls for endpoint malware prevention. The plan addresses endpoint protection requirements where blocking threats and reducing attack paths are the primary operational objectives. Microsoft ACB43DF08A8A-1Y provides the NFP staff pricing version of Defender for Endpoint P1 with a 1-year subscription term. P1 centers on preventive endpoint protection, including antivirus, attack surface reduction, web protection, and device control. It is distinct within the Defender for Endpoint family as the prevention-oriented plan rather than a package centered on endpoint detection, incident investigation, or threat hunting workflows.