What term describes a situation where a new document allows deduction of classified information even if it does not explicitly contain it?

The term that accurately describes the situation where a new document leads to the deduction of classified information, even if that information is not explicitly stated, is commonly understood as "inferred from." This term captures the essence of drawing conclusions about classified content based on the implications or context provided by the new document.

Inferred classifications occur when pieces of information lead to a logical conclusion about the classification status of other related information. For example, if a document discusses certain capabilities or parameters that are known to be classified, one can infer that related specifics are also classified based on the logical connection, even if they are not detailed in that document.

Other options do not correctly convey this concept. "Revealed by" implies a direct disclosure which does not account for the subtleties of indirect deductions. "Seen in" suggests direct visibility rather than a deductive reasoning process. "Extracted from" typically denotes physically pulling information directly out of a document rather than deducing it. Hence, "inferred from" is the most accurate choice for describing the situation in question.