The Android market was hit by malware called DroidDream earlier this year. Hackers pirated 80 applications, added malicious code and tricked users into downloading them from the Android Market. Google said 260,000 devices were attacked.
Also this year, another malware, called GGTracker, attacked when consumers clicking on links in ads, and on the Web site to which the links led, signed them up, without their consent, for text message subscription services that charged $10 to $50.
Lookout, a mobile security software firm, says that up to a million people were afflicted by mobile malware in the first half of the year, and that the threat for Android users is two and a half times higher than it was just six months ago.
McAfee, Symantec, Sophos and AVG, are each developing mobile security solutions that protect cellphones from hacks and malware that could read text messages, store location information or add charges directly to mobile phone bills.