Megaupload was a popular file-sharing website launched in 2005, allowing users to upload and share large files over the internet. It provided a platform for users to store and distribute various types of content, including music, videos, and software, often without proper copyright permissions. In January 2012, Megaupload was shut down by the U.S. government due to allegations of copyright infringement and piracy. The site's founder, Kim Dotcom, was arrested, leading to a high-profile legal battle over issues of internet freedom, copyright laws, and the future of file-sharing services.