A platform privacy data leakage accurate tracing method and data interception system

By constructing a data element lineage map and spatiotemporal sequence, and combining it with a non-cooperative game mechanism, leakage paths are identified and sorted, solving the problem of inaccurate tracing in adversarial leakage scenarios in existing technologies, and realizing accurate tracing and real-time interception of platform privacy data.

CN122437720APending Publication Date: 2026-07-21SHENZHEN KOALA EXPRESS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN KOALA EXPRESS TECH CO LTD
Filing Date
2026-06-05
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies cannot accurately reconstruct the propagation path of private data in adversarial data leakage scenarios, and lack quantitative ranking of candidate leakage sources, resulting in inaccurate source tracing and false positives and missed detections.

Method used

By constructing a lineage map of data elements and a spatiotemporal sequence of operational behaviors, a risk propagation map is established. A non-cooperative game mechanism is used to simulate adversarial behavior during the leakage process, identify the optimal leakage path, and output the leakage sources based on the path confidence ranking.

Benefits of technology

It enables accurate reconstruction of leakage paths in complex data flow environments, improves the accuracy of source tracing, quickly identifies the real leakage source, and combines real-time interception measures to prevent data leakage and improve the level of security protection.

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Abstract

The application discloses a platform privacy data leakage accurate tracing method and a data interception system, and belongs to the technical field of data security and privacy protection. The method comprises the following steps: obtaining a data access request and extracting data element identification and operation behavior characteristics, constructing a blood relationship graph of data elements and a time-space sequence of operation behaviors; based on the element propagation path of the blood relationship graph and the behavior jump node of the time-space sequence, a risk propagation graph of data leakage is established, a path optimization algorithm based on non-cooperative game is executed on the risk propagation graph, and an optimal leakage path from a leakage starting node to a detection node is identified; a node sequence on the optimal leakage path forms a leakage source candidate set, the path confidence of each candidate node is calculated, and a leakage source positioning result is sequentially output. By introducing a matching degree score and an interception mechanism in the data access request stage, real-time blocking of suspicious requests is realized.
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