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Phone-based social engineering (vishing)

Vishing is a term that's used to describe a social engineering attack that happens over a telephone. There are many cases where people have received calls from an attacker, claiming that they are calling from the cable company or the local bank, and asking the victims to reveal sensitive information, such as their date of birth, driver's permit number, banking details, and even user account credentials.

Usually, the attacker calls a target while posing as a person from a legitimate or authorized organization asking for sensitive details. If this first approach doesn't work, the attacker may call again, posing as a more important person or a technical support agent, in an attempt to trick the user into ...