Microsoft 365 is a broader package that includes everything in Office 365 (like Word, Excel, PowerPoint, and cloud services such as OneDrive and Teams), along with additional tools like advanced security, device management, and, for business plans, Windows 10/11 licensing. Office 365 primarily focuses on cloud-based productivity tools, while Microsoft 365 is designed to offer a more comprehensive solution for individuals, families, businesses, and enterprises with extra features for security and management. Essentially, Microsoft 365 is an expanded version of Office 365.