Deceptive behavior for game-theoretical reasons

"An AI system can display deceptive behavior, such as cheating or bluffing, when engaging in such behavior is a good or optimal game-theoretical strategy to achieve the goals it has been configured to achieve. This tendency can exist in AI systems designed to maximize reward or utility, whether these designs use machine learning or not. The use of deceptive strategies has been demonstrated in both narrow and general AI systems, in both game-playing systems and in systems not explicitly designed to treat humans as opponents, and in systems using both very simple machine learning (e.g., Q-learners) and very complex machine learning [34, 73]."