A years-old privacy flaw will finally be coming to an end on Android. It’s an issue you’ve probably never heard of, but one that you should absolutely be concerned about. Currently, apps on Android can gain full access to the network activity on your device – even without asking for any sensitive permissions. These apps can’t detect the content of your network calls, but they can sniff any outgoing or incoming connection via TCP/UDP to determine if you are connecting to a certain server. For instance, an app can detect when another app on your device connects to a financial institution’s server. Don’t believe me? Just download one of the many netstat apps on the Play Store and see for yourself.
I had no idea this was an issue at all. Good to see it fixed, and since it’ll probably be part of a monthly security update, it’ll propagate to most Android devices.