app

Over the Easter weekend, customers reported problems using contactless pay and Click & Collect, and online orders have been paused on the company's website and app since Friday.

But these systems are also vulnerable to more "traditional" web app techniques, he says.

You can keep up to date with the prospects for your area by checking BBC Weather online and on the app.

She said the government was allowing such apps to "go unchecked with extreme real-world consequences".

Sir Keir is spending Monday touring hospitals promoting reforms to the NHS app - which he said will haul the health service out of the "dark ages", saving it money and cutting waiting lists.