The term whaling is used to describe the technique social engineers and hackers use to gain access to senior executives, thus, landing the big one Executives can take a few quick steps to reduce the risk of finding themselves on the end of a hackers harpoon. Be sure that you recognize who your emails are coming from. If you dont recognize the address, you probably want to stay away from discovering what is swimming under the surface.”]
Source: https://www.csoonline.com/article/3223954/back-to-school-part-2-no-whaling-allowed.html

