Embodiments of the present invention are directed to a tethering enforcement device controller and methods thereof. The tethering enforcement device controller (TEDC) is installed on a primary device, or otherwise known as the tethered device. The TEDC is configured to detect, control and block unauthorized or inappropriate tethering with a secondary device, or otherwise known as the tethering device, via either a native or a third-party tethering application, by retrieving a configuration file from a server associated with a wireless carrier. The configuration file typically includes customer profile and currently blacklisted package names of third-party tethering applications. The customer profile typically includes subscription information, including use of tethering services. If the customer is trying to tether and tethering is not allowed, then the TEDC will prevent the secondary device from tethering with the primary device. In some embodiments, the TEDC is an untethering application installed on the primary device.