Answer
Umar Farouk Abdulmutallab, widely known as "The Underwear Bomber," attempted a terrorist attack on Christmas Day in 2009. He boarded Northwest Airlines Flight 253 from Amsterdam to Detroit with explosives concealed in his underwear. Fortunately, the device failed to detonate, and Abdulmutallab was apprehended by passengers and crew members. His actions led to increased security measures on aircraft worldwide.