Your phone, tablet and computer all know where you are and have a pretty good idea what you are doing; e.g. at home watching TV (or Netflix), out running (or out shopping), or even out of the country. e-Commerce businesses are tapping in to this information to offer targeted, relevant services and offers to their customers.
We all see this in the way image ads are targeted at us as we search or browse. Based not just on where we are but also our online history, our demographic, even our marital or social status.
Will Banks be using the same information to offer us specific products and services? Well they already are, via targeted advertising on platforms like GoogleAds, Facebook Ads, LinkedIn, etc. So it's not a huge leap of imagination to begin to do the same via their own web sites and apps.