AT&T customers in the US whose data has been leaked is equivalent to the population of Spain, Portugal, Greece and Ireland. Personal details that may have left AT&T's control include your full name, email address, postal address, telephone number, Social Security number, date of birth.
Data is packaged in the same way as crazy mortgages during the Great Recession, as prediction products, and sold in the futures markets of citizen behaviors. Among those companies are Apple (which corners the smartphone market); Meta, with a privileged position on social networks with Facebook, WhatsApp or Instagram.