Personal data is usually kept super-safe under onerous government restrictions – for the obvious risk of it falling into the wrong hands. But the pub landlord is less likely to have a data security policy, so it is easy to see how the list of drinkers can fall into the hands of a barman. Or even a customer. It gives an ominous new meaning to track-and-trace and undermines the basic privacy issues that this system raises.
https://www.spectator.co.uk/article/has-the-abuse-of-test-and-trace-started-already-