Screen Capture Detection via Embedded User Identifiers
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Solution Overview
Problem
Conventional security measures are ineffective in detecting and preventing unauthorized capture or recording of sensitive information displayed on screens by camera-equipped devices, which poses an undetectable and unstoppable risk as these devices become more prevalent and advanced.
Innovation Solution
The implementation of systems and methods that generate unique identifiers for authorized users and incorporate watermarks or visual identifiers, such as bar codes, into documents containing sensitive information. These identifiers can be detected by out-of-band systems, allowing for attribution of image captures to the rightful user and initiating appropriate security measures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional security measures are used to restrict access to sensitive information, then access control is maintained, but detection of unauthorized capture or recording by camera-equipped devices becomes impossible
Solution Approach 1:
The system embeds watermarks and visual identifiers into sensitive information before it is displayed on the screen. These identifiers are prepared in advance and integrated into the content, enabling future detection of unauthorized captures without requiring any action at the moment of potential theft.
Solution Approach 2:
The patent introduces watermarks and visual identifiers as intermediary elements between the sensitive information and the capture detection process. These intermediaries serve as detectable markers that bridge the gap between the displayed information and the unauthorized capture event, allowing the system to trace captures back to specific users or devices.
2Object-affected harmful factors
If camera-equipped devices are prevented from being located near screens, then unauthorized capture is stopped, but device mobility and user convenience are significantly restricted
Solution Approach 1:
The system converts the inherent capability of camera-equipped devices (which cannot be completely eliminated) into a detectable event. Instead of trying to prevent devices from being near screens, the patent embeds identifiers that transform unauthorized captures into detectable and attributable events, turning a harmful capability into a traceable action.
Solution Approach 2:
The patent establishes a feedback loop where watermarks and visual identifiers enable the system to receive information about captures and respond appropriately. When a capture is detected through identifier analysis, the system can trigger security responses, creating a closed-loop security mechanism that provides continuous monitoring and response capability.
3Measurement precision
If watermarks or visual identifiers are embedded in documents, then capture attribution becomes possible, but document processing and display complexity increases
Solution Approach 1:
The system applies watermarks and visual identifiers selectively rather than uniformly to all content. The identifiers are embedded in specific regions or at specific densities sufficient for detection purposes, avoiding unnecessary processing overhead while maintaining attribution capability.
Solution Approach 2:
The watermarks and visual identifiers serve multiple functions simultaneously: they act as aesthetic elements, security markers, and attribution tools. This multi-functionality reduces the need for separate systems and minimizes additional processing complexity while achieving capture detection and user attribution.
Data Source
AI summary
Captures or recordings of sensitive information or data displayed on screens or displays are detected by generating unique identifiers of users and embedding linked codes including such identifiers into the information or data. When the information or data is accessed by a user and displayed on a screen, and an image of the information or data is captured by a camera of a mobile device or other system, the camera detects a code within the images and requests to access a page or other networked resource associated with a link embedded in the code. Upon detecting a request to access such a page, the request may be attributed to the user. Upon detecting a unique identifier within an image depicting sensitive information, the image may be attributed to the user.