Seems I'm the idiot then, missed the "gateway" bit... so this basically sits between something providing VNC/RDP and makes it accessible with just a web server?
One would hope Tesco would cover any costs incurred by customers that are a direct result of this. I know banks in the past have cancelled non-arranged overdraft fees when they've screwed up, but that's easier to do as it's cancelling a charge rather than actually paying money out.
I'd rather keep my money in one place - if you've got 3 accounts in separate banks that means 3 accounts to pay attention to to make sure nothing is going out that shouldn't and also multiplies the risk factor?
"In conclusion, JSON is not a data format you can rely on blindly." - that suggests the format is bad when it's highlighting problems with the parsers. I see it like saying "Plain text is a bad format because notepad bails on large files"