A private blockchain is a type of blockchain network where access is restricted to specific participants, providing enhanced privacy and control over the data shared within the network. Unlike public blockchains, where anyone can join, private blockchains are used by businesses and organizations to create secure, permissioned environments for transactions and data management. Private blockchains ensure greater privacy, scalability, and faster transaction speeds while maintaining the benefits of decentralization. They are ideal for enterprises that require confidentiality and need to ensure data integrity while maintaining control over the network's participants.