Overview
- The announcement Tuesday, August 4, 2026, designates Chainlink’s Cross‑Chain Interoperability Protocol (CCIP) as the exclusive cross‑chain provider for roughly $7.3 billion to $7.7 billion of Wrapped Bitcoin (WBTC).
- Adding BitGo’s decision to prior moves by Mantle, Aave, Kraken and others raises the publicly disclosed total of LayerZero-to‑Chainlink migrations to about $14.5 billion to $14.6 billion.
- BitGo said it will standardize WBTC on Chainlink’s Cross‑Chain Token (CCT) standard and keep direct control over token contracts, transfer rate limits and other operational settings, rather than delegating those controls to the bridge operator.
- The shift follows a $292 million exploit of a LayerZero‑powered bridge earlier this year that prompted teams to recheck bridge approvals and configurations and to favor CCIP’s messaging and oracle network model for cross‑chain transfers.
- The move concentrates interoperability for major wrapped‑Bitcoin products with Chainlink, which could narrow options for competing bridge providers and give Chainlink greater influence over how Bitcoin liquidity moves across DeFi, and neither company has provided a full migration timetable.