Scammers typically kick into high gear during tax season in the United States. A new phishing campaign that began sometime in the last 24 hours is made to look like it was sent from irs@irsonline.gov. It urges recipients to fill out, print, and fax an attached PDF tax form. The IRS has been careful to note that while it may conduct follow-up correspondence with taxpayers via email. Consumers can report any tax-related phishing scams to phishing@irs.gov.”]
Source: https://krebsonsecurity.com/2011/03/irs-scam-phishing-by-fax/