A user receives an unsolicited call from a technician claiming to be from a Microsoft certified
partner. The technician tricks the user into allowing them access to their PC because of malware
alerts that were being broadcasted. Which of the following attacks is this user a victim of?

A.
Shoulder surfing

B.
Phishing attack

C.
Social engineering

D.
Malware infection

Explanation:
http://www.social-engineer.org/