- 间谍网 jiàndiéwǎng spy networkA network of spies or secret agents.
- 反间谍 fǎnjiàndié counterintelligenceactivities or measures designed to prevent or thwart espionage
- 间谍活动 jiàndiéhuódòng espionageespionage or spying activities
- 间谍罪 jiàndiézuì espionageespionage; crime of spying
- 间谍软件 jiàndiéruǎnjiàn spyware