From SEG to CEG: The Rise of the Next-Generation Cloud Email Architecture

Traditional secure email gateways (SEGs) were built for a different era of cyber threats. Today’s attackers use sophisticated identity deception tactics, social engineering, and cloud-native attack methods that can bypass legacy defenses and trick even the most vigilant users.

As organizations continue migrating to cloud email platforms like Microsoft 365, security strategies must evolve alongside them. That’s where the next-generation Cloud Email Gateway (CEG) comes in.

Download this white paper to discover how modern email protection goes beyond the traditional SEG model and helps organizations defend against advanced phishing, business email compromise (BEC), and identity-based attacks. You’ll learn:

  • How cybercriminals use identity deception to target people and organizations
  • Why legacy SEGs struggle to stop modern email threats
  • How Microsoft 365 delivers core email security functionality in the cloud
  • What makes cloud email gateway architecture more effective for today’s threat landscape

Get the insights you need to modernize your email security approach and better protect your users, data, and business from evolving threats.

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