What Is Interoperability?
Also known as: Blockchain Interoperability, Cross-Chain Interoperability, Cross-Chain Compatibility
In short
Interoperability is the ability of different blockchain networks to exchange data, assets and messages with one another. This allows users and applications to benefit from the features of multiple blockchains without being tied to a single network.
Blockchains are inherently closed systems: the Bitcoin network cannot see or verify a transaction on Ethereum on its own. Interoperability solutions aim to bridge this separation. Common methods include bridges that lock assets on one chain and mint a representative version on another, atomic swaps that require no intermediary, and cross-chain messaging protocols.
Some ecosystems have placed interoperability at the center of their design. Chains in the Cosmos network communicate through the IBC (Inter-Blockchain Communication) protocol; Polkadot, meanwhile, brings different chains together on a shared security layer. Protocols such as LayerZero and Chainlink CCIP provide general-purpose message passing between networks. For example, a user can move their USDC on Ethereum to a Layer 2 network to transact at lower fees.
Although interoperability improves user experience and liquidity, it creates new security risks. Because bridges hold large amounts of locked assets, they have been targets for attackers; the attacks on the Ronin and Wormhole bridges are among the largest losses in the industry. The security of a cross-chain system is often only as strong as its weakest component.
Last updated: · This content is for information purposes only and is not investment advice.