Cross-Consensus Messaging Format (XCM) is responsible for the communication and value transfer between chains within the Polkadot ecosystem and even beyond Polkadot. XCM acts as the communication infrastructure for parachains within the Polkadot network, enabling them to exchange messages, transactions, and assets.
XCM catalyzes interoperability by removing the barriers that have hindered blockchains from collaborating, efficiency through its standardized messaging format, decentralization with messages validated independently, and scalability through its dynamic architecture.