https://finance.yahoo.com/news/apnewsbreak-verizon-end-sale-phone-142418746.html > It is the first major U.S. wireless carrier to step back from a business practice that has drawn criticism for endangering privacy. The data has allowed outsiders to track wireless devices without their owners' knowledge or consent. > Verizon, the nation's largest mobile carrier measured by subscribers, said that about 75 companies have obtained its customer data from two little-known California-based brokers that it supplies directly — LocationSmart and Zumigo.