Here is some important info from the IRS’ website about phishing:
A suspected phishing email on the Employer Identification Number (EIN), claiming to come from the IRS Office of Professional Responsibility, is currently circulating. The IRS does not send taxpayers unsolicited emails about their tax accounts, tax situations or personal tax issues. If you receive such an email, most likely it’s a scam.
IRS impersonation schemes flourish during filing season. These schemes may take place via phone, fax, Internet sites, social networking sites and particularly email.
Many impersonations are identity theft scams that try to trick victims into revealing personal and financial information that can be used to access their financial accounts. Some email scams contain attachments or links that, when clicked, download malicous code (virus) that infects your computer or direct you to a bogus form or site posing as a genuine IRS form or web site.
Some impersonations may be commercial Internet sites that consumers unknowingly visit, thinking they’re accessing the genuine IRS website, www.IRS.gov. However, such sites have no connection to the IRS.