Their cybersecurity departments (next to fresh produce) are all over this.
Snark aside, supermarkets are not in the tech business. The extent of their involvement is ringing their IT vendor to complain about it.
It really depends on the grocery. Kroger gets a big chunk of their profits from their data stack.
Depends. Lidl wants to be a tech company.
https://en.wikipedia.org/wiki/Schwarz_Digits