The Internal Revenue Service and its Security Summit partners are warning of a new IRS impersonation campaign. Emailers posing as IRS representatives have been sending messages with phrases such as "Automatic Income Tax Reminder" or "Electronic Tax Return Reminder."

A Columbus, Ga., tax preparer has pleaded guilty to charges of federal wire fraud and identity theft. Kevan Walker, 33, of Columbus, faces a sentence of 20 years for wire fraud and a mandatory two-year sentence for ID theft.

Xero has named new country managers for the United States and Canada. The New Zealand-based cloud software company this week said it had appointed Ben Richmond as the U.S. manager and Will Buckley to head Canada.