How do I Send a Secure Email in Outlook?

**Executive summary:** The article outlines the risks of sending unsecured email and summarizes how Microsoft 365 (S/MIME and Office 365 message encryption) and KnowBe4 add-ons (Protect, Prevent, Cloud Email Security) can be used to encrypt messages, protect data at rest, enforce flexible authentication, and reduce accidental data leaks through contextual checks and recipient controls.