According to Mcafee, "A company from India has released an advertising software developer kit (SDK) called SilverPush that uses your phone’s microphone to listen for near-ultrasonic sounds placed in TV, radio and Web advertisements. Once SilverPush detects the signal, it collects data from your device and sends information about your device back to the advertiser. While this is not a piece of malware, it is a huge concern from a privacy perspective. It collects personal information from your device, including, but not limited to:
