A user receives a call from an individual claiming to be a manager. They state that they urgently need information in order to close a business deal. The user trusts the caller and provides them with the information, only to learn it was used in an attack just a few days later.

What do we call the act of manipulating users into revealing confidential information?

A

SQL injection

B

Brute force attack

C

Social engineering

D

Malware