Question

A type of attack where the intruder observes authentication secrets such as a combination or pin:

Answer 1

shoulder to get personal information

Answer 2

Shoulder surfing is the correct answer.

Step-by-step explanation:

Talking about computer security, the term shoulder surfing refers to a form of social engineering technique that is used to obtain information (like the one mentioned in the question: personal identification numbers, passwords, etcetera) by looking over the victim's shoulder.