Content Delivery Network Unauthorized Signal Usage Detection
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Solution Overview
Problem
Existing content delivery networks face challenges in detecting and preventing unauthorized signal usage, particularly when security systems are compromised, leading to prolonged unauthorized access and counter-measures that are time-consuming and inefficient.
Innovation Solution
A method and system that acquire and evaluate signal usage records to detect unauthorized usage by identifying indicia such as concurrent use of pay-per-usage signals, geographic blackout regions, and other unauthorized signal combinations, with the option to disable the receiver upon detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional conditional access systems are used, then content distribution is enabled, but unauthorized signal usage cannot be detected promptly
Solution Approach 1:
The system performs preliminary actions by acquiring multiple signal usage records and evaluating them for indicia of unauthorized usage before taking counter-measures. This proactive evaluation of usage patterns enables early detection of compromised receivers, allowing the system to identify unauthorized signal combinations before significant damage occurs.
Solution Approach 2:
The system implements feedback by continuously monitoring signal usage records and evaluating them against authorized usage patterns. When unauthorized usage is detected through this feedback loop, the system can immediately respond by disabling the compromised receiver, creating a closed-loop detection and response mechanism that reduces response time.
2Reliability
If security monitoring is implemented, then unauthorized usage detection is improved, but system complexity increases
Solution Approach 1:
The receiver performs self-service by autonomously evaluating its own signal usage records against authorized usage patterns. The receiver can independently detect unauthorized usage and trigger disabling actions without requiring constant external intervention, thereby reducing overall system complexity while maintaining security detection capabilities.
Solution Approach 2:
The security monitoring function is segmented into discrete evaluable components - acquiring usage records, evaluating for indicia, detecting unauthorized usage, and executing counter-measures. This segmentation allows the complex security function to be broken down into manageable steps that can be implemented and maintained more easily.
3Productivity
If compromised receivers remain in operation, then service continuity is maintained, but unauthorized access duration increases
Solution Approach 1:
The system applies preliminary anti-action by preparing and evaluating multiple signal usage records before unauthorized usage can cause significant harm. By continuously monitoring and evaluating usage patterns, the system can detect and counteract unauthorized access before it propagates or causes extensive damage, effectively neutralizing the threat in advance.
Solution Approach 2:
The system takes preliminary action by acquiring and evaluating usage records proactively rather than reactively. This allows the system to detect unauthorized usage early in the compromise process and disable the receiver before the unauthorized access duration can extend significantly, thereby limiting the window of vulnerability.
Data Source
AI summary
A method and system for controlling unauthorized signal usage in a content delivery network, such as a television network, is described. The method and system acquires at least two signal usage records for a receiver of the content, evaluates the at least two signal usage records for indicia of usage of a combination of signals not normally authorized on the receiver, and detects unauthorized signal usage upon the at least two signal usage records being consistent with such indicia.