7 Lessons Learned from Replacing 100+ SEGs

Traditional SEGs have become increasingly ineffective against sophisticated threats like business email compromise (BEC) and account takeovers. Once designed to block spam and malware, SEGs now struggle with evolving tactics that bypass their signature-based defenses. This has led to rising costs, complexity, and undetected risks that can severely impact organizations.

In this report, we share insights from replacing over 100 SEGs, offering actionable strategies for security leaders to strengthen email security. Key takeaways include:

• Understanding the lv .
• How to transition from reactive, signature-based systems to proactive, real-time threat detection.
• How to consolidate and streamline email security to reduce complexity and lower costs.