A new Trojan affecting Android devices has recently emerged in China. Dubbed “Geinimi” based on its first known incarnation, this Trojan can compromise a significant amount of personal data on a user’s phone and send it to remote servers. The most sophisticated Android malware we’ve seen to date, Geinimi is also the first Android malware in the wild that displays botnet-like capabilities. Once the malware is installed on a user’s phone, it has the potential to receive commands from a remote server that allow the owner of that server to control the phone.
Courtesy:http://blog.mylookout.com/2010/12/geinimi_trojan/
You can never have too much security when there are viruses like these floating around. Try email filtering services for extra protection.