Integrated Cloud Email Security (ICES) vs Secure Email Gateway (SEG)

The report explains how phishing threats are evolving and compares Secure Email Gateways (SEGs) with Integrated Cloud Email Security (ICES), noting that Microsoft 365’s native defenses often duplicate SEG functionality. It highlights ICES advantages—behavioral, NLP/ML-based detection of BEC/ATO and payload-less attacks, real-time in-inbox warnings, and improved response—and cites data showing many phishing emails bypass SEGs and Microsoft 365. It concludes that many organizations are consolidating on Microsoft 365 plus ICES, retaining SEGs only for specific use cases like journaling and archiving.