Whaling Attack

This is another form of Social Engineering technique. Also, a type of Phishing attack which is very targeted one. In this type of attack, what hacker does is finds "big fish" in an organization. "Big Fish" means high level personnel in an organization who if successfully attacked will result in huge gain.

Specifically crafted genuine looking phishing email is sent to that person from a person masqueraded as senior person of that organization. S/He will click on the link and otherwise provide personal information to the attacker unknowingly.