An attacker impersonated himself as a pizza delivery boy and is waiting outside the target company. He observed that an employee of the company is gaining security approval to enter the campus. When the employee is opening the entrance door of the company, the attacker requested the employee to hold the door open to enter into the company.
In the above scenario, identify the technique used by the attacker to enter into the company?
A . Dumpster diving
B . Vishing
C . Tailgating
D . Phishing
Answer: C