Re: de-anonymisation
Of course, it's the first thing that would occur to British ministers and civil servants. "Apple and Google have come up with this contact tracing framework that supposedly preserves privacy. How can we use it to de-anonymise people and the relationships between everyone for no specific reason other than the minister wakes up one day and deems it proportionate?"
And this, for puzzled overseas readers who occasionally ask here why people in the UK don't want ID cards, is why nobody trusts them.
Biting the hand that feeds IT
