BitTorrent is a peer-to-peer (P2P) file-sharing protocol designed to distribute large amounts of data efficiently over the internet. Instead of downloading a file from a single source, BitTorrent breaks files into small pieces and allows users to download and upload these pieces simultaneously from and to multiple computers (peers). This decentralized approach reduces bandwidth strain on any single server and speeds up downloads, making it popular for sharing large files such as videos, software, and datasets. While BitTorrent itself is legal, it can be used to share both legitimate and copyrighted content.