Clipboard Access Control for Personal Information Security
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Solution Overview
Problem
Data stored in a clipboard is vulnerable to external access, with existing protection methods failing to adequately safeguard personal information, particularly in scenarios where applications access the clipboard without user consent.
Innovation Solution
An electronic device is configured to detect read and write accesses to the clipboard, determine if the data includes personal information, and manage access permissions based on user input, using metadata and secure storage areas to protect sensitive data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If applications are allowed to access the clipboard freely, then ease of operation is improved, but security of personal information deteriorates
Solution Approach 1:
The system dynamically adjusts clipboard access permissions based on the type of data being accessed. Personal information requires user authorization while other data can be accessed freely, creating a flexible security model that adapts to different scenarios rather than using a static allow-all or deny-all approach
Solution Approach 2:
Different security levels are applied to different portions of clipboard data. Personal information is identified and marked with metadata indicating it requires protection, while other data remains accessible. This creates localized security zones within the clipboard system
2Measurement precision
If data scanning is performed on all clipboard data, then detection precision of personal information is improved, but processing time increases
Solution Approach 1:
Personal information format data is pre-stored in the system, containing patterns and characteristics of sensitive data types. When clipboard data is accessed, this pre-prepared information is quickly matched against the current data to identify personal information, avoiding the need for complex real-time analysis
Solution Approach 2:
Instead of performing complex analysis on the actual clipboard data, the system uses copied patterns and formats of personal information (stored as format data) to quickly compare and identify sensitive data. This pattern-matching approach is more efficient than full data scanning
Data Source
AI summary
A method of controlling a clipboard and an electronic device for performing the method are provided. The electronic device includes a display; a volatile memory including a first storage area configured to store a clipboard including existing data; an input interface; and at least one processor communicably coupled to the display, the volatile memory, and the input interface, the at least one processor being configured to: detect a read access to the existing data included in the clipboard by an application; determine whether the existing data includes personal information; and based on determining that the existing data includes the personal information, determine whether to allow the read access to the existing data by the application, based on a user input provided through the input interface.