In the field of computer security, phishing is the criminally fraudulent process of attempting to acquire sensitive information such as usernames, passwords and credit card details by masquerading as a trustworthy entity in an electronic communication. Communications purporting to be from popular social web sites (YouTube, Facebook, MySpace, Windows Live Messenger), auction sites (eBay), online banks (Wells Fargo, Bank of America, Chase), online payment processors (PayPal), or IT Administrators (Yahoo, ISPs, corporate) are commonly used to lure the unsuspecting. Phishing is typically carried out by e-mail or instant messaging, and it often directs users to enter details at a fake website whose look and feel are almost identical to the legitimate one. Even when using server authentication it requires skill to detect that the website is fake. Phishing is an example of social engineering techniques used to fool users, and exploits the poor usability of current web security technologies. Attempts to deal with the growing number of reported phishing incidents include legislation, user training, public awareness, and technical security measures.
Dude 1: This captcha is sooo freaking annoying!
Dude 2: It's to stop phishers dude! Do you really want your passwords or emails to get out to someone else, didn't think so!