Hacker News new | ask | show | jobs
by fauigerzigerk 1060 days ago
Google doesn't see anything just because it uses web technology. For instance, the payroll system I use is a web app, but Google doesn't see my company's payroll data. What Google sees is a marketing blurb about the payroll system.

Google sees everything that is public and everything that uses their ad network, including data from apps that don't use the web at all.