infiltratedBy

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: infiltratedBy

Indicates that an entity has been secretly entered, penetrated, or taken over by another entity, typically in a covert or unauthorized manner.