The mosaic effect, also called the mosaic theory, is the concept that aggregating multiple data sources can reveal sensitive or classified information that individual elements would not disclose. It originated in U.S. intelligence and national security law, where analysts warned that publicly available or unclassified fragments could, when combined, compromise operational secrecy or enable the identification of protected subjects.
The mosaic effect, also called the mosaic theory, is the concept that aggregating multiple data sources can reveal sensitive or classified information that individual elements would not disclose. It originated in U.S. intelligence and national security law, where analysts warned that publicly available or unclassified fragments could, when combined, compromise operational secrecy or enable the identification of protected subjects.
Source: Wikipedia "Mosaic effect" · CC BY-SA 4.0
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