Which scenario best exemplifies technical surveillance in corporate espionage?

Technical surveillance in corporate espionage involves the use of technology to monitor, gather, or intercept information without the knowledge of the targeted individuals or organization. The scenario where a spy hacks into a computer to eavesdrop directly aligns with this concept, as it utilizes technical methods to gain unauthorized access to data or communications, making it a clear example of technical surveillance.

This method is not just about gathering physical documents but involves sophisticated tactics that exploit vulnerabilities in technology systems to listen in on conversations or access sensitive information, which is a hallmark of industrial efforts to gain an advantage over competitors through illicit means.

The other scenarios involve forms of corporate espionage but do not specifically highlight technical surveillance. Using a fake ID to steal documents or creating a fraudulent website may involve deception and manipulation but do not principally rely on technology as the means to gather information. Impersonating technical support could involve some technical elements; however, it primarily focuses on deceit and lacks the direct element of surveillance through technology. Thus, the scenario where a spy hacks into a computer stands out as the clearest illustration of technical surveillance in corporate espionage.