New Online Tracking Tool Evades Privacy Settings

11:45 minutes

A new online tracker is snooping on visitors to more than 5,600 popular sites, such as Cancer.org, WhiteHouse.gov and NYDailyNews.com—and it’s nearly impossible to block. Julia Angwin, author of Dragnet Nation and a senior reporter at ProPublica, talks about “canvas fingerprinting,” as the new technique is called, and what this post-cookie tracker means for privacy online.

Segment Guests

Julia Angwin

Julia Angwin is author of Dragnet Nation: A Quest for Privacy, Security, and Freedom in a World of Relentless Surveillance (Times Books, 2014) and senior reporter for ProPublica in New York, New York.

Meet the Producer

About Christopher Intagliata

Christopher Intagliata was Science Friday’s senior producer. He once served as a prop in an optical illusion and speaks passable Ira Flatowese.