phishing /ˈfiSHiNG/ the fraudulent practice of sending emails or other messages purporting to be from reputable companies in order to induce individuals to reveal personal information, such as passwords and credit card numbers.
While Phishing seems like an easy attack to dodge (and typically it is), just one email can compromise all of your data. In a world where spam emails are becoming easier and easier to send, tools like this are a must to stay safe.