Authors: Olajide Adebayo, Tolulope Awobeku
Abstract: Business Email Compromise (BEC) attacks represent one of the most financially devastating cybersecurity threats facing modern enterprises, with losses exceeding $43 billion globally since 2016 according to FBI Internet Crime Complaint Center data. This study presents a comprehensive detection and mitigation strategy specifically designed for hybrid cloud environments utilizing Microsoft 365 and Google Workspace platforms. The research focuses on developing an integrated framework that combines advanced identity and access management protocols, robust encryption mechanisms, and automated compliance enforcement to effectively counter BEC threats. Through analysis of enterprise security architectures and implementation of policy-aware automation systems, this study demonstrates how organizations can significantly enhance their resilience against sophisticated social engineering attacks while maintaining operational efficiency in distributed work environments.