Users worldwide are experiencing significant disruptions with Facebook Messenger, starting around 10:30 AM ET, affecting regions including the United States, the United Kingdom, Europe, Australia, South America, and Asia. Facebook Messenger has about one billion users as of early 2025. Meta's other messaging platform, WhatsApp, faced similar issues during this outage, with over 8,200 complaints logged on Downdetector in the United States. This incident is reminiscent of a previous outage four years ago that lasted seven hours and resulted in a significant revenue loss, attributed to a faulty update. During that outage, access systems at Facebook's Menlo Park campus were also disrupted. The current situation has led to user frustration and raised concerns about the reliability of major tech firms' infrastructure.