device Id changer programs generates an issue in my app

Question

I have a problem in my android app, I am sending device Id to server and they make it as unique identifier , some hacker are able to root android device and change the device Id of other devices, can any one tell me how to make sure this is the read device Id or a fake one

Answer 1

You can check whether phone is rooted or not.

public static boolean isRooted() {
        return findBinary("su");
    }

    public static boolean findBinary(String binaryName) {
        boolean found = false;
        if (!found) {
            String[] places = { "/sbin/", "/system/bin/", "/system/xbin/",
                    "/data/local/xbin/", "/data/local/bin/",
                    "/system/sd/xbin/", "/system/bin/failsafe/", "/data/local/" };
            for (String where : places) {
                if (new File(where + binaryName).exists()) {
                    found = true;
                    break;
                }
            }
        }
        return found;
    }