In re-launching the inquiry into carriers' data privacy and security practices, the FCC argues that not informing customers about the software or its data practices may have violated the carriers' responsibility pursuant to Section 222 of the Communications Act of 1934 to protect customer data "that is made available to a carrier solely by virtue of the carrier-customer relationship." The law allows such data to be used only in "limited circumstances," a term which is not defined in Section 222. It appears that one of the goals of the renewed inquiry is for the FCC to define the scope of the "limited circumstances."