Microsoft Defender for Office 365 (Plan 2) is an essential security solution tailored for Microsoft 365 environments, providing robust protection across Exchange Online, SharePoint Online, OneDrive for Business, and Teams. It offers advanced threat protection against phishing attacks, malicious attachments, and harmful links in emails, leveraging real-time scanning and machine learning models. The solution includes features like Safe Attachments and Safe Links, which dynamically analyze email content to block malicious files and URLs before they reach users. Additionally, it enhances email security with anti-spam filtering to reduce unwanted messages and controls file types in SharePoint and OneDrive to prevent malware dissemination. With continuous updates from the Microsoft Intelligent Security Graph, organizations benefit from proactive defense against evolving threats. Microsoft Defender for Office 365 (Plan 2) also equips IT teams with tools for incident investigation and response, ensuring swift detection, containment, and remediation of security issues across Microsoft 365 services, thereby safeguarding sensitive data and maintaining compliance.