Facebook has begun alerting some users that their data was swept up in the Cambridge Analytica privacy scandal.
Anthony Bagnetto was one of many people who woke up Tuesday morning to a notification on his Facebook feed informing him that "one of" his friends used Facebook to log into a now-banned personality quiz app called "This Is Your Digital Life."
"I do think it mattered, just because it was information that was so detailed. It was providing a gold mine for the candidates who use it. It allowed them to target their advertising very effectively and really hone their message."