“Session replay scripts” can be used to log (and then playback) everything you typed or clicked on a website.
(20 November 2017) Most people who’ve spent time on the internet have some understanding that many websites log their visits and keep record of what pages they’ve looked at. When you search for a pair of shoes on a retailer’s site for example, it records that you were interested in them. The next day, you see an advertisement for the same pair on Instagram or another social media site.
The idea of websites tracking users isn’t new, but research from Princeton University released last week indicates that online tracking is far more invasive than most users understand. In the first installment of a series titled “No Boundaries,” three researchers from Princeton’s Center for Information Technology Policy (CITP) explain how third-party scripts that run on many of the world’s most popular websites track your every keystroke and then send that information to a third-party server.
Motherboard has the full article.