Selective Storage Device Wiping System for Lost Computers
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Solution Overview
Problem
Existing computer disk wiping methods are time-consuming and inefficient, allowing data thieves to recover files before the entire storage device can be wiped, especially in cases of lost or stolen computers, as they require overwriting every sector multiple times with known patterns.
Innovation Solution
A remotely activated system that selectively wipes personal and sensitive data files first, followed by overwriting free space and then the entire storage device, using a unique ID system and firmware or hardware module to initiate the process independently of the computer's operating system, ensuring rapid and secure data removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional complete storage device wiping is performed, then data security is improved, but time consumption increases significantly
Solution Approach 1:
The wiping process is segmented into two distinct phases: first wiping only the file system data (files, folders, directories) and then wiping the entire storage device. This segmentation allows the system to prioritize critical data protection while reducing overall wiping time when the complete wipe is not immediately necessary.
Solution Approach 2:
The system performs preliminary identification and marking of files containing sensitive or personal information before the wiping process begins. This preliminary action enables the selective wipe phase to quickly target and destroy critical data first, achieving security objectives without waiting for the time-consuming complete device wipe.
2Productivity
If selective file wiping is performed first, then productivity is improved, but data security may be compromised if not implemented correctly
Solution Approach 1:
The system incorporates feedback mechanisms that continuously monitor the wiping process and system state. The firmware receives status information about which files have been wiped and adjusts the process accordingly, ensuring that sensitive data is completely removed while maintaining the ability to transition to a complete wipe if security requirements demand.
Solution Approach 2:
The storage device firmware autonomously determines and executes the selective wiping of files identified as containing sensitive information without requiring external intervention. This self-service capability ensures that critical data protection is initiated immediately, achieving both speed and security through automated decision-making embedded in the firmware.
Data Source
AI summary
A storage device wiping system and method that is activated from a remote server or other site when a computer is reported lost or stolen. The wipe technique selectively wipes all data files and free space before beginning to wipe the entire storage device. This causes any personal data files, photos, videos, and the like to be wiped first. Once the wiping process starts, it will continue until complete. The process starts or continues whenever the computer is booted. Only when all personal and sensitive data is wiped, will the system then change the encryption key (if there is one) and begin wiping the entire storage device.