https://www.dailysabah.com/business/tech/data-of-over-15-billion-facebook-users-being-sold-on-dark-web
Facebook, Instagram, Whatsapp, Oculus, and other Facebook-owned services have been down worldwide for about 5 hours thus-far. Whether the outages are the result of internal damage-control or a malicious attack is yet unclear.
https://www.reuters.com/technology/facebook-instagram-down-thousands-users-downdetectorcom-2021-10-04/