Independent Testing Confirms Secure Email Threat Defense's Email Security Strength
Cisco, Tuesday, June 16th, 2026
Cisco Secure Email Threat Defense earned SE Labs' top AAA rating with a 94% total accuracy score.
Cisco Secure Email Threat Defense received the highest AAA rating from SE Labs in May 2026 testing. The product achieved a 94% Total Accuracy Rating across all tested threat categories. It demonstrated strong performance blocking phishing and malware while maintaining legitimate email delivery. The post positions independent validation as evidence of the product's email security effectiveness.