It says in the article they're going to release information including customers favourites .. that's personal information - they'll need individual permission to do that.
You can imagine the headlines "Tesco.net confirms MP for Basingstoke is sex fiend" when the favourites show the married MP that is away from home all week buys 20 condoms, 2 packs of lube and a copy of the Gay Times every week.
You can imagine the headlines "Tesco.net confirms MP for Basingstoke is sex fiend" when the favourites show the married MP that is away from home all week buys 20 condoms, 2 packs of lube and a copy of the Gay Times every week.