Cloud-Based Risk Profiling for Mobile Device Network Access Control
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Solution Overview
Problem
Conventional Network Access Control (NAC) systems are static and limited in scope, failing to effectively manage the growing complexity of mobile devices accessing cloud services across diverse operating systems and network topologies, leading to compatibility issues and increased security risks due to their inability to adapt to changing network conditions and emerging threats.
Innovation Solution
A cloud-based security system performs multidimensional risk profiling of mobile devices, combining device, application, user, and environmental risks to dynamically assess and control network access, using a client application to collect posture data and update risk indices, allowing or denying access based on a weighted risk analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional static NAC systems are used, then system simplicity is maintained, but security risk increases and adaptability to changing network conditions deteriorates
Solution Approach 1:
The patent implements dynamic risk indexing that continuously updates security assessments based on real-time network conditions, device posture data, and threat intelligence. The system transitions from static access control lists to dynamic risk-based policies that automatically adapt to changing environmental factors, device states, and emerging threats without requiring manual reconfiguration.
Solution Approach 2:
The system incorporates continuous feedback loops where device posture data, network behavior analytics, and threat intelligence are constantly monitored and fed back into the risk assessment engine. This feedback mechanism enables the NAC system to learn from observed patterns and automatically adjust access decisions based on updated risk profiles, creating a self-improving security system.
2Adaptability or versatility
If multiple separate applications are deployed for different services, then service functionality is comprehensive, but device complexity and user configuration burden increase
Solution Approach 1:
The patent implements a universal NAC agent that consolidates multiple security functions into a single application. This unified agent handles device profiling, posture assessment, policy enforcement, and access control across various network services and cloud resources, eliminating the need for separate applications while maintaining comprehensive security coverage.
Solution Approach 2:
The system merges previously separate security functions (device management, access control, threat detection, and policy enforcement) into an integrated cloud-based NAC platform. This consolidation reduces the number of individual applications and components while providing coordinated security across all enterprise resources through a single management interface.
3Stability of the object's composition
If static NAC policies are enforced, then policy consistency is maintained, but productivity decreases due to manual reconfiguration requirements
Solution Approach 1:
The system performs preliminary risk assessment and policy determination before access requests are processed. Device posture data is collected and evaluated in advance, and appropriate access policies are pre-configured based on device profiles and historical behavior patterns. This preliminary action enables automatic policy application without requiring manual user intervention during access attempts.
Solution Approach 2:
The NAC system automatically performs policy enforcement and access decisions without requiring manual user configuration or administrator intervention. The system self-adjusts access policies based on real-time risk assessments, automatically adapting to changing conditions while maintaining policy consistency through centralized cloud-based policy management.
4Adaptability or versatility
If cloud-based dynamic risk profiling is implemented, then security adaptability and intelligence improve, but system complexity and data processing requirements increase
Solution Approach 1:
The patent introduces a cloud-based intermediary NAC service that handles complex risk assessment computations and policy decision-making. The lightweight on-device agent collects posture data and communicates with the cloud service, which performs the heavy lifting of multidimensional risk analysis using aggregated data from multiple sources. This intermediary architecture distributes system complexity from the endpoint to the cloud infrastructure.
Solution Approach 2:
The system transitions risk assessment from a single-device perspective to a multidimensional cloud-based analysis that incorporates data from multiple sources including device posture, network behavior, threat intelligence feeds, and organizational context. This dimensional expansion enables more sophisticated security adaptability while distributing computational complexity across the cloud infrastructure rather than individual devices.
Data Source
AI summary
A server configured to profile a mobile device for a cloud-based system, includes a network interface, a data store, and a processor communicatively coupled to one another; and memory storing computer executable instructions, and in response to execution by the processor, the computer-executable instructions cause the processor to, based on communication to a client application on the mobile device, cause the client application to collect data associated with the mobile device; receive the collected data; and determine a device fingerprint and a risk index for the mobile device based on the collected data, wherein the device fingerprint is utilized to uniquely identify the mobile device and the risk index is utilized to manage the mobile device.