When Michael Terpin’s smartphone suddenly stopped working in June 2017, he knew it wasn’t a good sign. He called his cellular provider, AT&T, and learned that a hacker had gained control of his phone number.
The stakes were high because Terpin is a wealthy and prominent cryptocurrency investor. Terpin says the hackers gained control of his Skype account and tricked a client into sending a cryptocurrency payment to the hackers instead of to Terpin.
When we use browsers to make medical appointments, share tax returns with accountants, or access corporate intranets, we usually trust that the pages we access will remain private. DataSpii, a newly documented privacy issue in which millions of people’s browsing histories have been collected and exposed, shows just how much about us is revealed when that assumption is turned on its head.
DataSpii begins with browser extensions—available mostly for Chrome but in more limited cases for Firefox as well—that, by Google’s account, had as many as 4.1 million users. These extensions collected the URLs, webpage titles, and in some cases the embedded hyperlinks of every page that the browser user visited. Most of these collected Web histories were then published by a fee-based service called Nacho Analytics, which markets itself as “God mode for the Internet” and uses the tag line “See Anyone’s Analytics Account.”