Phishing Email Protection for a Large State-owned Bank
Background
As one of China’s leading state-owned banks, its email system
supports
vast volumes of daily
internal and external transaction
communications
and instruction
flows. Serving as a critical hub for stable
financial
operations, the system
demands exceptional standards of
security,
accuracy, and continuity.
Challenges
The bank’s massive daily email volume places constant strain on
security
screening processes.
Despite deploying a McAfee Email Security Gateway, existing defenses remain vulnerable to APT-level targeted attacks—including spear-phishing emails disguised as financial instructions or internal notices, and ransomware-laden attachments. This highlights the critical need to strengthen email defenses with advanced threat protection.
Despite deploying a McAfee Email Security Gateway, existing defenses remain vulnerable to APT-level targeted attacks—including spear-phishing emails disguised as financial instructions or internal notices, and ransomware-laden attachments. This highlights the critical need to strengthen email defenses with advanced threat protection.
Core Requirements
Phishing Detection Priority
Identify APT-grade spear-phishing emails through dynamic URL analysis and behavioral correlation techniques.
Enhance attachment threat defense:
Conduct deep sandbox analysis of email attachments to block Trojans, Ransomware, and other malicious codes effectively.
Architecture compatibility
Ensure zero business disruption through seamless deployment that preserves existing email routing configurations.
Deployment method
-
Email traffic is initially filtered by the McAfee Email Security Gateway, then forwarded to PhishShield for secondary, in-depth threat detection.
-
After inspection, F5 load balancing distributes the traffic across dual email servers, ensuring uninterrupted business continuity and system stability.
Background
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50-Day Core MetricsProcessed 1,210,481 emails, detected 5,995 threats (416 high-risk / 826 medium-risk / 4,753 low-risk)
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Detection Efficiency99% threat detection accuracy with only 1% false positives, significantly reducing security operational costs
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Business ValuePrevented an estimated 10 million yuan in economic losses by establishing a financial-grade email security defense
