张某某（原国家部委工作人员），为外国政府充当间谍，成为外国女官员情人并生下两个私生子，私存单位5200份文件，国家安全部披露

Core Viewpoint - The article highlights the increasing threat of foreign espionage and the various tactics employed by foreign intelligence agencies to infiltrate and manipulate individuals for information gathering [2][10]. Group 1: Espionage Tactics - Foreign intelligence agencies utilize methods such as romantic relationships, financial incentives, and emotional manipulation to lure individuals into providing sensitive information [2][10]. - Cases are presented where individuals unknowingly became involved in espionage activities, often starting with seemingly innocent interactions that escalated into serious breaches of national security [4][5][7]. Group 2: Case Studies - A case involving a student named Xiao Zhe illustrates how a supposed "senior sister" manipulated him into providing nearly 100 pieces of sensitive military-related information, resulting in a payment of 45,000 yuan [4]. - Another case features Zhang, a former government employee, who became romantically involved with a foreign intelligence officer and ultimately provided 5,200 confidential documents, leading to a death sentence for espionage [5][6]. - A third case describes Li, who sought part-time work and was drawn into espionage through financial rewards, ultimately leading to severe legal consequences [7][8]. Group 3: Warnings and Recommendations - The article emphasizes the importance of public awareness regarding espionage tactics and encourages individuals to remain vigilant against such manipulative strategies [10]. - It advises the public to report any suspicious activities to national security authorities through designated channels [10].