Sex and espionage have been inseparable since ancient times. Using beauties or handsome men to lure targets, engaging in sexual relationships with them, causing them to unknowingly leak top secrets while using advanced electronic eavesdropping, photography and video recording espionage tools to secretly record and photograph various "pornographic evidence", blackmailing, buying, and subverting for one's own use has become a widely used espionage method by intelligence security agencies around the world. This method usually starts with an accidental meeting, love at first sight, begins with sexual temptation, ends with sexual extortion, supplemented by monetary bribery, combining both soft and hard tactics, and has repeatedly achieved great success and led the trend in the field of espionage.