Twitter has in recent years has begun periodically requiring phone number checks for "account security." What users have not always been aware of is that these items have been added in to Twitter's internal personalized advertising system.
Digital Services Act would bring new restrictions on how targeted advertising can use sensitive personal information and a requirement that the inner workings of recommender algorithms be visible to the public.
A new proposed privacy bill, The Banning Surveillance Advertising Act, would restrict ad targeting to context and to generalized location data that goes no further than the city level.
The Luxembourg CNPD has issued Amazon the largest GDPR fine to date, hitting the online shopping giant with a penalty of €746 million (about $887 million) over its targeted advertising practices.