The Google I / O this year officially starts tomorrow and we hope to see many new features of Android P (in addition to its name ). One piece of information that we discover again thanks to the AOSP code is that it will make it more difficult for applications to spy on your Internet connection.
Specifically, Android P will begin to block access to proc / net, which although it may not sound, implies that any application can see active Internet connections without any special permission. In this way, you can know if you are connected say to your bank or Facebook and save that information for your own benefit.
No More Active Connections
Oddly enough, we are in 2018 and still, any application can do the equivalent of a netstat, collecting all active TCP and UDP connections, as well as their destinations. This does not mean that they can know the data, but that the connections exist.
This will change in the future, because Google has now begun to close access to this privileged information, which, according to the words of the commit, filters information. It will not be immediate, however, and the applications developed for API 28 (Android 8.1) will remain the same, so it will not really be until next year when the changes begin to take effect.
For now, we are going to follow the cautious route that we have already seen in other changes of Android P as the undocumented APIs and will collect access of what applications and services need access to this data and for what. The idea is that the access is made through the appropriate APIs and not in free buffet mode, as up until now.
Does this mean that you yourself will not be able to see active connections on your mobile? Not necessarily, because it is suggested that some known or system applications will be added to the whitelist, and theoretically in the future, this information should be accessible through an API. What will happen is that all applications that use this method to show active connections, such as Netstat Plus, should be updated and could end up being useless in the future.
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