Essential Microsoft 365 security features for Malaysian businesses include Conditional Access for location-based and device-based access control, Data Loss Prevention (DLP) for PDPA compliance, Microsoft Defender for comprehensive threat protection, and Multi-Factor Authentication for enhanced user security. Advanced features include Information Rights Management for document protection, eDiscovery for legal compliance, and Compliance Manager for Malaysian regulatory adherence. We configure Microsoft Intune for mobile device management, Advanced Threat Protection for email security, and Cloud App Security for comprehensive visibility and control over cloud applications used by your organization.