I have never heard of this new security feature - though for people who are not partially sighted or don't have dementia it is a great idea! My mum, unfortunately, had appalling eyesight ( macular degeneration) and dementia. Her lifeline every day is to walk to Marks and Spencers - they are now going to make this very difficult for her - despite it being a small shop where they know her very well. I am not comfortable giving her carer the pin number. Has anyone else come up with this problem and is there an answer? Thanks!