The IRS is sounding a warning about a phishing scam aimed at students and staff at educational institutions. The IRS says the rip-off is aimed at those who have an .edu email address. The federal tax agency says it has received complaints about the scam, which is aimed at students at public and private institutions, and at profit and non-profit schools. The fraudulent emails show the IRS logo and makes bogus references to tax refund payments. The IRS never uses email, text messages, or social media to discuss tax debts or refunds with taxpayers.