'Possible Covid-19 exposure': NHS app users receive concerning notifications – but don't necessarily need to self-isolate

The notification only means that the system is looking at a possible exposure, not that the system has definitely been triggered.The app's official Twitter account confirmed that users will be sent a specific notification if they are judged to be at high enough risk to need to self-isolate, and that message will be separate from the one indicating that they have been subject to a possible exposure.Many users of the app – which was released last week – have reported receiving concerni