People are worried about Android's security problems which have been gradually getting bigger and bigger. The security firm has found out that more than 5,000 malicious applications designed to target Google's Android mobile operating system, and it has risen to about 20,000 recently.

"FileSonic has become the latest cyberlocker service to go offline. The service used to be one of the most popular file-sharing sites, but had restricted its members' ability to access other's uploads after the Megaupload arrests."

Why are they forced offline?