Uncapping, in the context of cable modems, refers to a number of activities performed to alter an Internet service provider's modem settings. It is sometimes done for the sake of bandwidth (i.e. by buying a 512kbit/s access modem and then altering it to 10Mbit/s), pluggable interfaces (as by using more than one public ID), or any configurable options a DOCSIS modem can offer.Uncapping may be considered an illegal activity, such as theft of service, and many Internet service providers check modem configuration files[how?] nightly to detect uncapped modems. If caught, uncappers risk possible account termination and/or prosecution for theft of service.[citation needed] Note that regardless of legality, uncapping may be a violation of the Terms of Service agreement that the customer has with the ISP.