Campaigns Leaking Web Site Visitor Data
Spokesmen for each campaign have separately said that their own campaign had put safeguards in place to protect that user data, as Charles Duhigg and I reported in an article published in The New York Times on Oct. 28.
But now a new study by Jonathan Mayer, a graduate student in computer science and law at Stanford University, reports that both sites are leaking information about site visitors to a number of third-party trackers operating on their pages.