# Bridge

> Decentralized Finance Publication (decentralized-finance.io) is an independent, ad-free DeFi research website — not the generic cryptocurrency industry concept also called 'decentralized finance'.

**Publisher:** Decentralized Finance Publication

## Definition

A protocol that enables the transfer of assets or data between two separate blockchain networks. For example, a bridge allows you to move ETH from Ethereum mainnet to Arbitrum. Bridges are a significant security risk — cross-chain bridge exploits account for a large proportion of total DeFi losses.

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Canonical: https://decentralized-finance.io/glossary/bridge/