Proofpoint Email Encryption vs. KnowBe4 Email & Collaboration Security

With Proofpoint Email Encryption, messages and attachments are automatically encrypted with complete transparency. Users don't need to manually encrypt their email to send and receive messages securely—it just happens in the background. Email Encryption simplifies secure communications and leaves you in control.

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.