A newly discovered vulnerability in Google's (NASDAQ:GOOG) Android mobile operating system enables hackers to modify APK code without breaking an application's cryptographic signature, creating malicious Trojans that go undetected by the app store, device or consumer, mobile security solutions firm Bluebox reported. The firm said the vulnerability dates back at least as far as the fall 2009 release of Android 1.6, and it could affect any Android phone released in the past four years--close to 900 million units in all, or roughly 99 percent of all devices running the Google OS. Article