News bites: Yahoo report shows challenge Mayer faces

The New York Times looks at the depth of the challenges facing new Yahoo CEO Marissa Mayer after the company reported another drop in its quarterly income.

Following in Verizon's footsteps, AT&T said it would offer shared data plans, the AP reports.

PayPal bought Card.io, which makes mobile credit card scanning technology. CNET has the story.

The Wall Street Journal reports on the rare case of a phone company fighting an FBI demand for customer data.