https://www.mercurynews.com/2021/10/06/facebook-says-outage-was-caused-by-error-during-routine-maintenance/ > LONDON (AP) — The global outage that knocked Facebook and its other platforms offline for hours was caused by an error during routine maintenance, the company said. > Santosh Janardhan, Facebook’s vice president of infrastructure, said in a blog post that Facebook, Instagram and WhatsApp going dark was “caused not by malicious activity, but an error of our own making.”