A clandestine cell system is a method for organizing a group of people, such as resistance fighters, spies, mercenaries, organized crime members, or terrorists, to make it harder for police, military or other hostile groups to catch them. In a cell structure, each cell consists of a relatively small number of people, who know little to no information concerning organization assets beyond their cell. This limits the harm that can be done to the organization as a whole by any individual cell member defecting, being a mole, being surveilled, or giving up information after being apprehended and interrogated.