Network Security Framework for Device Compliance and Access Control
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Solution Overview
Problem
Existing network security systems face challenges in ensuring that connected devices have up-to-date security features and restricting access for non-compliant devices, particularly for devices that are not constantly connected to the network, which increases the risk of malware attacks and productivity losses.
Innovation Solution
A network security framework that evaluates the security update status of devices and applies policies such as 'protect the good,' 'encourage the busy,' and 'shut off the non-compliant' to ensure devices are updated and limit access accordingly, using discovery and detection modules to identify device states and update servers to provide automatic updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network security policies are enforced to restrict access for non-compliant devices, then network security is improved, but device accessibility and user convenience deteriorate
Solution Approach 1:
The system performs preliminary actions by automatically detecting device security status and pushing updates before malware attacks can occur. The framework proactively identifies non-compliant devices and applies security policies in advance, preventing security breaches before they impact network accessibility or user convenience.
Solution Approach 2:
The framework implements continuous feedback mechanisms where devices report their security status to the network, and the system responds with targeted security policies. This feedback loop allows the network to adapt security restrictions based on actual device compliance levels, balancing security with accessibility dynamically.
2Reliability
If security updates are pushed to all devices, then security protection is improved, but system complexity and implementation difficulty increase
Solution Approach 1:
The framework applies local quality by tailoring security update strategies to individual devices based on their specific compliance status. Instead of a uniform approach, the system identifies which devices need updates and applies targeted policies, reducing overall system complexity while maintaining comprehensive security protection.
Solution Approach 2:
The system enables self-service by allowing devices to automatically report their security status and receive targeted updates without requiring manual intervention. The framework autonomously manages the update process, reducing the operational burden on administrators while ensuring comprehensive security coverage.
3Reliability
If devices are required to maintain up-to-date security features, then vulnerability protection is improved, but network connectivity and service access are restricted
Solution Approach 1:
The framework implements dynamics by making network access rights flexible and adaptive rather than static. Security policies are dynamically adjusted based on real-time device compliance status, allowing compliant devices full access while restricting only non-compliant devices. This dynamic approach maintains vulnerability protection without unnecessarily limiting legitimate service access.
Solution Approach 2:
The system applies segmentation by dividing network access into distinct segments based on device compliance levels. Compliant devices receive full network access, while non-compliant devices are segmented off to limited access or isolation. This segmentation strategy protects the network from vulnerabilities while preserving full functionality for compliant devices.
Data Source
AI summary
A method and apparatus are provided for network security based on a security status of a device. A security update status of a device is evaluated; and one or more of a plurality of security policies are selected to apply to the device based on the security update status. The available security philosophies may include, for example, a “protect the good” philosophy, an “encourage the busy” philosophy and a “shut off the non-compliant” philosophy. The security update status can evaluate, for example, a version level of one or more security features installed on the device or can be based on a flag indicating whether the device satisfies predefined criteria for maintaining one or more computer security protection features up-to-date.