A private blockchain is a restricted, permissioned network where only authorized participants can validate transactions and maintain the distributed ledger. Unlike public blockchains, which are open to anyone, private blockchains are often used by enterprises to enhance privacy and control over their data. Private blockchains are ideal for businesses seeking secure, scalable, and efficient solutions for applications like supply chain management, internal record-keeping, and asset tracking. These blockchains provide more governance, faster transactions, and lower energy consumption compared to public blockchains, making them a popular choice for enterprise-level solutions.