Answer:
Phishing
Step-by-step explanation:
A phishing attack may be defined as a attack made on social platform that is used to steal the data, which includes the credit card details or credentials of individuals, etc. It is a fraudulent attempt to collect important information.
In the context, the employees receives an email asking them to click on the link and login using their credentials. It is a fraud email which no one in the company has sent. So this is a phishing attack.