LAS VEGAS, USA & BANGALORE, INDIA: Mobile security firm Lookout has cautioned Android users of an application that offers free wallpapers only to allegedly gather data about its users. The app gathers information like phone numbers, carrier subscriber identifiers and phone number of their voicemail accounts among others, the firm said.

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The Android app, called Jackeey, is estimated to have anywhere from 1 to 4 million downloads.

“While the data accessed are certainly suspicious coming from wallpaper apps, we’re not saying that these applications are malicious,” Kevin Mahaffey, founder and CTO of Lookout wrote in an e-mail to Android Central. “There have been cases in the past where the applications are simply a little overzealous in their data-gathering practices, but not because of any ill intent.”

The Jackeey app does not touch the SMS and browsing capabilities of the phone. Lookout made the disclosure at the ongoing Black Hat conference in Las Vegas.

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