Which feature of the Cisco Email Security Appliance can mitigate the impact of snowshoe spam and sophisticated phishing attacks?
A. signature-based IPS
B. graymail management and filtering
C. contextual analysis
D. holistic understanding of threats
Strong Defense against Snowshoe Campaigns and Phishing Attacks
Snowshoe spam, as mentioned above, is a growing concern as spammers distribute spam attack origination across a broad range of IP addresses in order to evade IP reputation checks. The newest AsyncOS 9 for ESA enables enhanced anti-spam scanning through contextual analysis and enhanced automation, as well as automatic classification, to provide a stronger defense against snowshoe campaigns and phishing attacks.
https://blogs.cisco.com/security/cisco-email-security-stays-ahead-of-current-threats-by-adding-stronger-snowshoe-spam-defense-amp-enhancements-and-more