Electronic File Risk Removal With Iterative CDR Policies
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Solution Overview
Problem
Existing cybersecurity technologies, including content disarm and reconstruction (CDR) products and malware detection, are insufficient for organizations to manage risk content with an acceptable tolerance or enforce digital risk content tolerance, leading to cybersecurity incidents.
Innovation Solution
A method involving multiple CDR tools in a recursive workflow, with iterative risk content removal policies and dynamic inspections, to achieve a specified confidence level and user-defined tolerance, using static and dynamic analysis to process electronic files.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single CDR product is used to remove risk content, then the process is simple, but the risk content removal is insufficient for organizations to operate with acceptable risk tolerance
Solution Approach 1:
The patent divides the CDR processing into multiple sequential products (first CDR product, second CDR product, etc.), each applying different policies to remove risk content at increasing depths. This segmentation allows comprehensive risk removal while maintaining manageable complexity through modular architecture
Solution Approach 2:
The system applies multiple layers of CDR processing beyond what a single product provides, using iterative routines that progressively remove risk content until confidence thresholds are met. This excessive action ensures adequate risk removal for organizations with strict tolerance requirements
2Measurement precision
If multiple CDR tools are used in iterative routine, then risk content removal confidence increases, but processing time and complexity increase
Solution Approach 1:
The system uses periodic inspection routines between CDR processing stages, where each inspection evaluates whether confidence thresholds are met. This periodic approach allows the system to stop processing early when sufficient confidence is achieved, reducing average processing time while maintaining high confidence levels
Solution Approach 2:
The iterative routine incorporates feedback mechanisms where inspection results directly influence subsequent processing decisions. If confidence thresholds are met, processing stops; if not, additional CDR tools are applied. This feedback loop optimizes processing time by avoiding unnecessary processing steps
3Reliability
If iterative CDR processing is applied, then risk content removal thoroughness improves, but user impact and operational disruption increase
Solution Approach 1:
The system dynamically adjusts processing depth based on user-defined confidence level selections. Users can choose their acceptable risk tolerance, and the system adapts the number and intensity of CDR tools applied accordingly. This dynamic approach balances security requirements with operational efficiency for different use cases
Solution Approach 2:
Different CDR tools in the iterative routine apply different policies and processing intensities tailored to specific risk scenarios. The first CDR product may apply basic policies while subsequent products apply more aggressive policies only when needed, optimizing the balance between security and user impact for each processing stage
Data Source
AI summary
A method for managing risk content associated with an electronic file includes receiving a selection of at least one of a depth of risk content removal or a confidence level associated with the risk content removal in which the electronic file satisfies a threshold confidence value and applying one or more policies based on the selection to process the electronic file by selectively implementing an iterative routine which includes: removing risk content from the electronic file according to a first policy by implementing a first content and disarm (CDR) tool policy to obtain a first processed electronic file, and based on whether a first inspection indicates the first processed electronic file satisfies one or more predetermined conditions, removing risk content from the first processed electronic file according to a second policy by implementing a second CDR tool policy to obtain a second processed electronic file or passing the electronic file.