The difference is that Tesco only knows about one aspect of my life: grocery shopping. I can handle that and contain the risk.
I don't use coffee shops but if I did they'd only know about my coffee preferences and work patterns.
Google, however, with search, Gmail and Now alone knows everything about the lives of its users. And quite a lot about the lives of non-users with whom they communicate.
I don't use coffee shops but if I did they'd only know about my coffee preferences and work patterns.
Google, however, with search, Gmail and Now alone knows everything about the lives of its users. And quite a lot about the lives of non-users with whom they communicate.