https://thenextweb.com/facebook/2019/12/20/267-million-facebook-users-data-has-reportedly-been-leaked/

Comparitech and security researcher Bob Diachenko have uncovered a database containing more than 267 million Facebook users’ data that was left exposed online, with not even a password preventing unauthorized access to it.

The Elasticsearch cluster contained user IDs, phone numbers, and names of mostly US-based users. According to Diachenko, who examined the evidence, the data likely came from “an illegal scraping operation or Facebook API abuse by criminals in Vietnam.”