Which event is a vishing attack?

Obtaining disposed documents from an organization, known as dumpster diving, is a physical social engineering technique, not a voice-based attack.

Using a vulnerability scanner on a corporate network is a technical reconnaissance activity to identify security weaknesses, not a social engineering attack involving voice.

Setting up a rogue access point is a network-based attack designed to intercept wireless traffic or lure users to connect to a malicious network, rather than a voice-based social engineering attack.

Vishing is a type of social engineering attack that specifically uses voice communication, typically telephone calls, to impersonate a trusted entity like a tech support agent to trick victims into divulging sensitive information or performing actions.