Webhow did facebook's network outage affect its services, users, and reputation? Learn how effective enterprise risk management (erm) could have. Weban error during routine maintenance on facebook's network of data centers caused monday's collapse of its global system for more than six hours, leading to a. Webfacebook and its apps went down for several hours on oct 4, 2021, affecting over 3. 5 billion users and businesses worldwide. The cause was likely an internal update. Webfacebook and other meta sites faced a major technical issue that prevented millions of users from logging in on super tuesday. See a visual exploration of the. Websan francisco — facebook and its family of apps, including instagram and whatsapp, were inaccessible for hours on monday, taking out a vital.