AT&T Inc. is targeting customers of smaller rival T-Mobile US Inc. with an offer for as much as $450 in credits for devices and services for each line they switch. The amount of the offer, which began Friday, depends on the make, model and age of the smartphone, AT&T said. The promotion applies only to customers of T-Mobile. AT&T’s battle with T-Mobile is intensifying after the former merger partners spent 2013 exchanging volleys through advertising. The two companies have singled each other out in part because they use a similar network technology that makes it easier for customers to switch between them while retaining their devices.
FireEye Inc., a maker of computer security software, says it has acquired Mandiant Corp., the firm that linked years of cyberattacks against U.S. companies to a secret Chinese military unit. FireEye said that the purchase of privately held Mandiant would increase its ability to stop attacks in their early stages. The company valued the deal at nearly $1 billion. FireEye said it would buy 21.5 million shares and options of its stock — worth about $884 million at Thursday’s closing price — and pay $106.5 million in cash to former Mandiant investors.
Automakers said Friday that sales of new vehicles cooled in December, but not enough to diminish the solid overall gains the industry made in 2013. Industry executives estimated that sales for the month rose about 3 percent from levels a year ago. While sales started slowly in December, the executives said that showroom traffic picked up considerably after the Christmas holiday. Still, the month capped the industry’s best overall year since 2007, as U.S. consumers and businesses kept a steady pace of replacing older cars and trucks with new models. For all of 2013, automakers sold more than 15.5 million vehicles in the United States, an increase of about 7 percent from the previous year.