A University of Texas at Dallas study of 100 mobile apps for kids found that 72 violated a federal law aimed at protecting children’s online privacy. “Suppose the app collects information showing that there is a child on Preston Road in Plano, Texas, downloading the app. It’s really, really scary,” Basu said. He found that many popular games designed specifically for young children revealed users’ Android IDs, Android advertising IDs and device descriptions. “I don’t download apps unless I need to.”Researchers from the Georgia Institute of Technology, Intel Corp. and New York University also contributed to the work.