Elon Musk listens as U.S. President-elect Donald Trump addresses a ... [+] House Republicans Conference meeting at the Hyatt Regency on Capitol Hill on November 13, 2024 in Washington, DC. As is tradition with incoming presidents,

For much of Monday — only the busiest offseason day for NFL transactions — Twitter was down. It's back up. For now. So what happened? Via Todd Spangler of Variety.com, Twitter owner Elon Musk said this,

The social media platform has been experiencing widespread outages all Monday, which CEO Elon Musk said was caused by a "massive cyberattack." The outages began before 5 a.m. Monday with around 20,000 users affected, according to Downdetector.