This white paper outlines critical data protection gaps within Microsoft 365 and emphasizes the responsibility of businesses to implement their own backup solutions. It details six key areas where data loss can occur, including accidental deletions, retention policy issues, insider threats, external security threats, migration challenges, and legal compliance risks. The document explains that Microsoft does not provide sufficient safeguards against these vulnerabilities, leading to potential data loss and compliance issues. For instance, accidental deletions can result in unrecoverable data, while retention policy mismanagement may lead to permanent data loss. Additionally, the paper discusses the risks posed by insider threats and malware, such as ransomware. It also highlights the challenges businesses face when migrating from on-premises Microsoft Office to Microsoft 365, particularly regarding data protection compatibility. The paper concludes by stressing the necessity for businesses to adopt comprehensive backup solutions to mitigate these risks effectively.