Email Security - SEGs Are Not Enough

You need cloud email security products that seamlessly integrate into Microsoft 365 to enhance its native security and detect the inbound and outbound threats that secure email gateways (SEGs) miss. Stop more attacks and uncover more data breaches.

Defend-PhishER-Hero_580x440_v1

The Only Self-Learning and Adaptive Anti-Phishing Product

KnowBe4 Defend addresses the gaps in M365 and Secure Email Gateways (SEGs). Defend complements your existing tools and offers comprehensive protection against evolving email threats.

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Stop Accidental and Malicious Data Loss with intelligent email DLP

Protect against human error and data exfiltration with intelligent email DLP. Advanced ML and behavioral AI monitor outbound email traffic and alert users to stop data breaches before they happen.

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Recognized by industry experts & trusted by customers

G2 Best Software 2025 G2 Best Software 2025 G2 Best Software 2025 G2 Best Software 2025

92% of organizations were victims of phishing

70k+ organizations, including 47 of the top 50 cybersecurity companies, rely on KnowBe4's platform

Over 91% of organizations have had an outbound email data breach

"If you are using Microsoft 365, it makes perfect sense to move towards a best-of-breed platform like KnowBe4 that can eliminate the full spectrum of inbound and outbound threats over email."

Rob Fountaine, Principal Security Engineer, Shields Health Solutions

Empowering smarter security decisions

KnowBe4, trusted by over 70,000 organizations globally, empowers workforces to make smarter security decisions. Our AI-driven 'best-of-suite' Human Risk Management + Platform fortifies user behavior against cyber threats. With modules for training, email security, real-time coaching, and AI Defense Agents, KnowBe4 transforms your workforce from a potential vulnerability into your strongest cybersecurity asset.