Kaspersky Lab products detected and neutralized 1,347,231,728 threats in Q3 2012. 28% of all mobile devices attacked run Android OS version 2.3.6, which was released in September 2011. A fifth of the malicious programs detected on user devices are versatile Trojans, most of which collect data from the phone. Android versions become targets for cyber-attacks most often. The OpFake family has become the most widespread (38.3%) among all the mobile malware families.”]
Source: https://securelist.com/it-threat-evolution-q3-2012/36692/