In an experiment, we surfed sites without making a wager or agreeing to data sharing. Our Meta feed filled up with betting ads
Revealed: gambling firms secretly sharing users’ data with Facebook without permission

A Facebook user logs into their account and is bombarded with dozens of gambling ads. The promotions for online casinos and betting sites offer free spins, “bet boosts”, discounts and bonuses.

But the person has never placed a bet or played a game on a gambling site before – let alone consented to being targeted. How can that happen?