This white paper explains why organizations relying on Microsoft 365 E3 may be exposed to significant security, data protection, and compliance gaps. Page 1 frames the challenge around escalating cyber threats, fragmented security tools, and rising operational costs. The document positions Microsoft 365 E5 as a comprehensive Zero Trust security solution that integrates identity protection, endpoint security, data loss prevention, governance, and threat detection into a single license. It details advanced capabilities such as Microsoft Entra ID Premium P2, Purview data classification and labeling, advanced DLP, insider risk management, eDiscovery, auditing, and Microsoft Defender protections across endpoints, cloud apps, and identities. The paper contrasts E5’s unified visibility, automated

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