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Interoperability
Interoperability is the ability of separate blockchains to exchange information and assets. Blockchains are built in isolation with different rules, so they cannot talk to each other natively; bridges and similar systems are built to connect them.
What it means for you. Moving a token to another chain usually means a bridge issues a version of it on the other side, so what arrives can be a wrapped token whose value depends on that bridge. Bridge contracts have been hacked for very large sums, so check who runs a bridge and how it holds funds before using it.
Sources: ethereum.org: Bridges, ethereum.org: Bridges (developer docs) · checked 4 October 2026
Chain abstraction
Chain abstraction is the effort to let people use many blockchains through one account and one interface without knowing or choosing which chain they are on. The user states what they want, such as sending a payment, and software routes it across chains, bridges and swaps behind the scenes.
What it means for you. When the chain is hidden, its risks are not: your request can pass through bridges, swaps and third-party solvers, each with its own fees and failure modes. Check what you are signing, which chain your assets end up on and who fills your order, because a cross-chain transfer that goes wrong can be hard to trace or reverse.
Sources: ERC-7683: Cross Chain Intents, NEAR docs: What is chain abstraction · checked 4 October 2026