Apple has largely remained quiet about iPhone "jailbreaking," in which users modify the device's software to run third-party applications. Now that EFF is pushing to make this practice officially legal. Apple for the first time discussed jailbreaking, calling it "hacking" in order to make "unauthorized modifications" to the iPhone and iPod Touch, in a support article. "It is also important to note that unauthorized modification of the iPhone OS is a violation of the iPhone end-user license agreement and because of this, Apple may deny service for an iPhone or iPod touch that has installed any unauthorized software."