Romney and Obama Campaigns Leaking Web Site Visitor Data
Romney and Obama Campaigns Leaking Web Site Visitor Data
The presidential campaign sites BarackObama.com and MittRomney.com have recently ratcheted up their use of third-party Web trackers. These are companies, like ad networks and data brokers working on behalf of the campaigns, that collect information about users’ online activities to show political ads to people tailored to their own interests and beliefs.
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.
Several pages on the Obama site included a user’s personal information in the page title at the top of the page or in the URL address, Mr. Mayer said, thereby giving third parties operating on the site the opportunity to collect identifying data. The information flowing to third parties, he said, variously included the username; the proper name under which a person registered; and their street address and ZIP code.
On the Romney site, Mr. Mayer said, he found that a number of pages included the user’s name in the page title. Many pages also included a unique numerical ID number in the URL, which flowed to third parties, he said.