Email is such a seamless part of everyday life that it is easy to take for granted just how vulnerable anyone can be to a well-crafted effort to steal your identity or confidential financial information. One of the most effective methods used by hackers is phishing, which entails trying to trick you into clicking on a link or attachment in an email. Instead of the attachment you thought you were opening, you have inadvertently opened the door to hacking from an outside source, usually without your knowledge.