Comment by dude123456

In a typical bid entry there are between 500 and 5000 bits of information relating to an individual, per the definition of GDPR. And that's not including the dreaded "IFA", which uniquely identifies the individual.

I don't agree with your claim that "the geodata is often fraudulent".

Anyone can read the linked pdf specification (above), download sample data from the exchanges, and judge for themselves.