Technological developments are obliging espionage agencies to adopt diverse methods of operation: not only to dispatch agents to enemy countries and to recruit local sources for intelligence, but also to dupe people into serving as agents without their knowledge, to use mercenaries and to rely on new capabilities, such as cyberattacks. To avoid biometric identification, as well as to evade security cameras, espionage organizations are being compelled to make increasing use of unwitting local agents.