In a typical case, you'll receive an email that appears to come from a reputable company that you recognize and do business with, such as your financial institution. In some cases, the email may appear to come from a government agency, including one of the federal financial institution regulatory agencies. The email will probably warn you of a serious problem that requires your immediate attention. It may use phrases, such as "Immediate attention required," or "Please contact us immediately about your account." The email will then encourage you to click on a button to go to the institution's Website.