A nice new app to check for a virus?

 What does anyone think about the NHS’ attempt to trace people that have been in contact or the neighbourhood with Covid-19? This is the much hyped app now promoted heavily in newspapers and about everywhere else. Sounds good? In principle – yes. Anything that helps combating a virus must be good. But as with so many other things to the good side there is a possible bad side. The app apparently works with Bluetooth. I don’t want to be the bad guy here but Bluetooth is NOT a particularly safe bit of technology. It basically works with a signal that can be picked up with comparable equipment like other mobile phones. I use Bluetooth to enable my mobile to work with an electronic church organ playing hymns from a list stored on the phone. It works great. Afterwards I switch off Bluetooth as the signal could be picked up by other phones. Just like this Covid app works. Because for the Covid app to be effective the Bluetooth signal has to be on at all times. Anyone with the right scanning equipment can then interfere with the phone. Now this will all be denied, no, it will not do this or that and so on and on but the facts are that Bluetooth works with a signal that is detectable. That’s how it works and that is how this app will have to work. So, will I use this app? Please guess?

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