Symantec Mail Security for Microsoft Exchange vs. KnowBe4 Email & Collaboration Security

Symantec Mail Security for Microsoft Exchange (SMSMSE) combines Symantec anti-malware technology with advanced heuristics and file reputation to provide real-time protection for email against viruses, spyware, phishing, and other malicious attacks. For additional protection, SMSMSE offers Symantec Premium AntiSpam (additional license), powered by Brightmail technology. Together, these protections help to stop 99 percent of incoming spam with less than one false positive per million.

KnowBe4 Email & Collaboration Security is the AI-native defense suite built to protect every conversation across Microsoft 365 and Google Workspace. Combining multi-engine behavioral AI with real-time user coaching, the platform stops inbound threats, prevents outbound data loss, and automates SOC response across the security lifecycle. Key Capabilities: - Inbound Protection (Defend): Multi-engine AI blocks zero-payload BEC, executive impersonation, quishing, and prompt injections that pass native mail filters.