Infiltrators are individuals who enter a place or organization clandestinely for the purpose of gathering information or disrupting operations. The term can refer to three different types of infiltrators: plants, spies, and moles. Plants are individuals who are sent into a place or organization to gather information without revealing their true identity or purpose. Spies are individuals who are sent into a place or organization to observe and report back on activities. Moles are individuals who are sent into a place or organization to disrupt operations or sabotage activities. All three types of infiltrators are used to gain access to information or disrupt operations without being detected.