The information of about half a billion Facebook users may have been compromised after personal details were posted on a website used by hackers.
Officials with cyber intelligence firm Hudson Rock say the situation involves about 32 million American users, 11 million people from the United Kingdom, and 6 million people from India.
The information includes full names, locations, phone numbers, email addresses, and birthdays.
The data is from 2019 before Facebook removed a function allowing users to search for friends using their phone numbers, but the information could still be used for identity theft.