Email Threat Inspection Using Inbound-Outbound Intelligence Sync
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Solution Overview
Problem
Existing email security solutions are inadequate in effectively blocking and responding to targeted email attacks, which pose significant risks through sophisticated methods like malware and social engineering, leading to security vulnerabilities for both incoming and outgoing emails.
Innovation Solution
An email security system that synchronizes threat information from inbound and outbound emails to perform a targeted email security threat inspection, including spam, malware, social engineering, and information leakage inspections, with a stepwise process to block and respond to these threats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If comprehensive targeted email attack inspection is implemented for both inbound and outbound emails, then security reliability is improved, but system complexity increases
Solution Approach 1:
The email security system is divided into separate inspection modules for inbound emails and outbound emails. Each module independently performs targeted attack inspections on its respective email direction, allowing comprehensive security coverage while maintaining manageable system complexity through modular architecture.
Solution Approach 2:
The system merges the inspection results and threat intelligence from both inbound and outbound email inspections into a unified security assessment. This combination enables comprehensive security reliability by considering threats from both directions while using integrated processing to avoid proportional increase in complexity.
2Measurement precision
If synchronized threat information inspection is performed across inbound and outbound emails, then measurement precision of security threats is improved, but loss of time in processing increases
Solution Approach 1:
The system performs preliminary inspection and threat detection on emails before they are fully processed or delivered. By conducting targeted attack inspections early in the email handling process, the system achieves precise threat measurement without adding significant processing time to the overall email workflow.
Solution Approach 2:
The system uses feedback from inspection results to dynamically adjust processing priorities and resource allocation. When threats are detected in either inbound or outbound emails, the system intensifies inspection efforts in related areas, improving measurement precision while optimizing time usage through adaptive processing.
Data Source
AI summary
The present invention relates to an email security system and an operation method thereof for blocking and responding to targeted email attacks, which perform inspection of unauthorized email server access attack, and the method comprises the steps of: configuring security threat information synchronization data by synchronizing targeted email security threat information configured by performing a targeted email security threat inspection on an inbound mail with targeted email security threat information configured by performing a targeted email security threat inspection on an outbound mail; performing a targeted email security threat inspection corresponding to a new inbound mail or a new outbound mail using the security threat information synchronization data; and performing a targeted email security threat response process according to the targeted email security threat inspection of the new inbound mail or the new outbound mail.