Microsoft Defender for Office 365 adds extra security around email, links, attachments, and collaboration tools.
It can help identify phishing messages, scan suspicious attachments, and check links that users click.
This is important because email remains one of the most common ways attackers reach employees.
Defender can also provide investigation tools for IT teams. If one user receives a malicious message, administrators can search for similar messages across the organization and take action.
No email security system is perfect. Attackers constantly change their methods, and some scams rely more on social engineering than malicious files.
That is why email protection should be combined with MFA, user training, financial verification procedures, and monitoring.
The goal is to reduce the number of dangerous messages that reach employees while also making it easier to investigate the messages that get through.