Another Android vulnerability uncovered 

Recent studies and researches are raising questions on the how secure android is. Adding to it,a new research by zimperium has revealed a much easier way for hackers to exploit the device.

According to Drake,a researcher in zimperium, the hacker would send you a malware-laden video through an MMS and that's enough to exploit the device. Apps(such as the Hangouts) would instantly process the video so that viewers can view the content without waiting. More details on the new exploit are yet to uncovered in the zimperium's black-hat event at Los Vegas that is to be held next week.
But it doesn't mean that all devices are at 100% risk. The newer technology used in the latest Android devices make it difficult to perform such vulnerabilities. The sandbox contains the user data that is highly secure.
So, we just have to wait and watch on how it would be overcome.