Microsoft 365 Outage Sparks Viral 'Microsoft 364' Meme

A widespread Microsoft 365 outage on November 12-13, 2026, disrupted services for hundreds of thousands of users globally, sparking a viral internet joke that rebranded the suite as "Microsoft 364" or "Microsoft 363." The outage affected Outlook, Teams, Copilot, and other applications, leading users on social media to mock the "365" branding by suggesting the service was unusable for one or two days of the year. Memes and edited logos spread rapidly across platforms. Viral posts on X and TikTok garnered millions of views and likes, with some users jokingly urging Microsoft engineers to take their time fixing the issue. The nickname became the dominant theme of online discussion during the disruption.