This happens even before the sound that you’ve received a message has even occurred. That’s what makes it so dangerous. It could be absolutely silent. You may not even see anything.For now, here is how you can check if your device is vulnerable to Stagefright! Zimperium Inc. has come up with an app that will detect if your phone is vulnerable and will inform you as soon as you need to update your operating system. Download the app, install it and once the app is installed, simply tap on ‘Begin Analysis’ button for the process to begin.
Researchers at Zimperium have found out a major security bug in Android operating system that allows hackers to gain complete remote access to your device via a simple text message. The loophole, termed as Stagefright, is so serious that an attacker could take over the device before the phone even has a chance to notify the user of an incoming text. The bug was discovered late last month and Google seems to be working hard on patching this issue. The Zimperium team has submitted patches to Google which have been readily accepted, so a future update might solve this. But, "it may take years for it to reach all devices." According to Zimperium researcher Joshua Drake: