There was a post on the moneysaving site on praise rant last week. A man did not want to be tracked and traced on when and where he spent his money. The answers were to get a tinfoil hat and that is not how digital info works, supermarket locality cards will show what customer do buy and sometimes give money off those items.
But banks are not tracking you, they are cracking down on security. Last Monday at 11 pm I got a text from my bank saying they wanted to discuss my recent purchases. Then a link which was my bank name. I thought dodgy but turned on the laptop and googled the link and nothing came up those exact words, checked my bank account nothing different or weird, well the last thing I bought was milk and stuff in the Co.op. Decided to phone the bank next morning to just check and yes it was a scam. The bank said we will never send a text or email with a link to click. If we believe something is wrong, we will ask you to contact us using the normal number.