This video is a classic from the Cold War. While some of the material is outdated, those same human security vulnerabilities still exist whether it be financial, sex, or peer pressure. The only difference between when this film was produced and now is the theater of operations has changed from being solely in an analog world to a digital, multi-spectrum world.

Here’s the synopsis from archives.org:
Exposes the worldwide operation of the Sino-Soviet espionage system and shows how Communist agents used any means to obtain vital information from military personnel. Reconstructs three actual cases to demonstrate various facets of espionage techniques. Explains how agents of different nationalities probe for vulnerable areas, such as loneliness, indebtedness, fast money, sex and the sporting life. Portrays the agent as he subtly approaches, ensnares and involves his victim until it is too late for the victim to retreat. Purpose: Information on communist espionage methods.