The lack of security patches plus root access means any malicious app can take full control of your device and potentially your home Wi-Fi.
Manufacturers will not service a rooted device under warranty. However, because Android 4.2.2 devices are well past their warranty lifespan, this risk is minimal for most users. Next Steps After Successfully Rooting root android 42 2 apk link download
Framaroot is a legendary tool for Android 4.x devices. Instead of a generic process, it allows you to choose specific exploits named after Lord of the Rings characters (e.g., Gandalf, Boromir, Pippin). The lack of security patches plus root access