July 2015 security Research Company Zimperium discovered a bug called Stagefright, with the help of this hackers can easily hack billions of android device.
Then Google promptly issued a patch for that issue, now Zimperium found two new vulnerabilities in Stagefright. This two vulnerabilities enabling the hackers take over an Android device by sending a multimedia file.
This two new vulnerability are worked based on mp3 and mp4 files this two bugs were found in android playback engine, it allows hackers to break into your phone when you visit a website containing malicious multimedia file.
Joshua Drake a researcher at Zimperium zLabs found that this bug can effect almost every android device in this planet.