What is The concept that involves combining or associating individual elements of unclassified information to reveal an additional association or relationship that warrants protection is called?

The concept is known as "mosaic theory." It involves piecing together seemingly innocuous or unclassified information to uncover sensitive insights or relationships that may require protection. By combining various data points, the potential for revealing classified or confidential information increases, highlighting the importance of safeguarding even seemingly benign details.