With the Android Pie update, Google is arising a host of new special features and improvements that aim to bump up the experience for eligible users across the world. It’s also safer in the present and contains a fix to a security flaw that was present on older Android versions.
As per the report from NightWatch Cybersecurity, all Android version older than Android 9 Pie contains a security flaw, named CVE-2018-9489, which can be used by any third-party app to “uniquely identify and track any Android device”. The flaw creates issues by ignoring permissions and getting access to information found in system broadcasts such as the Wi-Fi network name, MAC address, local IP addresses, BSSID and DNS server information. Any app with an unrestricted access to these parameters can help someone with malicious intentions to find a device remotely and steal data, without even letting the user know about it.
The Google Pixel series and Essential’s PH-1 are running on Pie, thereby offering the security from this bug. They reported that Google is not interested to fix the issue for previous Android versions, thereby leaving almost the entire Android universe vulnerable to a deadly flaw. 
