Many temptations of an open-source Chrome extension developer
"The data we’re interested in are basically just DNS errors:<p>NXD – Non Existent Domain - the domain that a user entered that resulted in a DNS error.
[...]"<p>What's the catch here? Are they making the extension query invalid names like userspersonallyidentifiableinformation.com to exfiltrate data from NXDOMAINs?