Basically, Android apps that have network access are capable of intercepting other Android apps you might have installed on your device when they try to connect to a certain server. You can even see which Android apps are monitoring your network activity by using an app like Netstat. We won't go into more details as most probably many of you out there are aware of this major privacy issue, which clearly Google tries to patch by implementing new rules in the SELinux (Security-Enhanced Linux) Linux kernel security module to restrict Android apps from monitoring your network activity. The first Android version to see the new security enhancements is Android P.
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