Wednesday, January 03, 2018

You Know Better Than To Use Browser Password Managers..., Right?


theverge |  Nearly every web browser now comes with a password manager tool, a lightweight version of the same service offered by plugins like LastPass and 1Password. But according to new research from Princeton's Center for Information Technology Policy, those same managers are being exploited as a way to track users from site to site.

The researchers examined two different scripts — AdThink and OnAudience — both of are designed to get identifiable information out of browser-based password managers. The scripts work by injecting invisible login forms in the background of the webpage and scooping up whatever the browsers autofill into the available slots. That information can then be used as a persistent ID to track users from page to page, a potentially valuable tool in targeting advertising.

The plugins focus largely on the usernames, but according to the researchers, there’s no technical measure to stop scripts from collecting passwords the same way. The only robust fix would be to change how password managers work, requiring more explicit approval before submitting information. “It won't be easy to fix, but it's worth doing,” says Arvind Narayanan, a Princeton computer science professor who worked on the project.

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