On February 7, 2000, a smurf attack generating over 1 gigabit per second of Internet Control Message Protocol traffic was launched against Yahoo! 's routers, causing their websites to be inaccessible to the world for hours.
On February 7, 2000, a smurf attack with traffic exceeding one gigabit per second was directed at Yahoo! 's routers, leading to the unavailability of their websites to the internet community for an extended period.