Dead drop

（重定向自Dead letter box）

A dead drop or dead letter box is a method of espionage tradecraft used to pass items or information between two individuals (e.g., a case officer and agent, or two agents) using a secret location, thus not requiring them to meet directly and thereby maintaining operational security. The method stands in contrast to the live drop, so called because two persons meet to exchange items or information.

单词	Dead letter box
释义	Dead letter box 英语百科 Dead drop （重定向自Dead letter box） A dead drop or dead letter box is a method of espionage tradecraft used to pass items or information between two individuals (e.g., a case officer and agent, or two agents) using a secret location, thus not requiring them to meet directly and thereby maintaining operational security. The method stands in contrast to the live drop, so called because two persons meet to exchange items or information.
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