BitGo Names Chainlink CCIP Exclusive Cross-Chain Provider for $7.7 Billion WBTC

BitGo will make Chainlink's Cross-Chain Interoperability Protocol the exclusive cross-chain infrastructure for Wrapped Bitcoin, the custodian said on Aug. 4, taking what it describes as more than $7.7 billion of the token off the provider it selected in 2024. All future BitGo-issued assets will use CCIP by default.

WBTC is the largest asset to leave LayerZero since the $292 million Kelp DAO exploit in April, and the framing makes the reason explicit: verifier configuration is now something a regulated issuer defends to clients rather than an implementation detail. BitGo opened its post on X with "Security comes first. Always has."

BitGo calls WBTC the largest omnichain fungible token by market capitalization, at more than $7.7 billion. OFT is LayerZero's token standard. Neither BitGo's blog post nor its X post names LayerZero, referring throughout to a "legacy solution." DefiLlama puts WBTC's value at $7.29 billion; CoinGecko puts circulating supply at 116,132 WBTC and market capitalization at $7.42 billion.

"BitGo has long been built around a simple principle: security comes first," said Mike Belshe, chief executive and co-founder of BitGo. "As we expand support for BitGo-issued assets across more chains, Chainlink CCIP gives us a proven, institutionally adopted interoperability standard that aligns with the controls, reliability, and risk management our clients expect from BitGo."

Sixteen Node Operators Minimum

BitGo listed four reasons for the switch. Every CCIP bridge lane is secured by a minimum of 16 independent node operators diversified across regions, organizations and hosting environments. CCIP holds SOC 2 Type 2 and ISO 27001 certifications, which BitGo says no other cross-chain protocol has. CCIP supports issuer-managed rate limits and configurable transfer controls that BitGo describes as automatic circuit breakers. And BitGo keeps full ownership of its token deployments, with "no reliance on CCIP-specific code within its smart contracts."

BitGo also plans to use Chainlink's Cross-Chain Token standard to establish unified canonical WBTC deployments across supported blockchains. Neither a chain list nor a completion date appears in the announcement.

The Configuration That Broke

BitGo made WBTC natively omnichain with LayerZero in September 2024, using a setup in which BitGo's own decentralized verifier network had to sign every cross-chain transfer, plus one of two optional verifiers, LayerZero Labs and Polyhedra. Verifier configuration is exactly what broke for Kelp.

In its incident report, dated May 18, LayerZero wrote that the loss of 116,500 rsETH "was made possible by the affected OApp's single-verifier configuration. Because no second independent DVN was required to attest, the destination contract accepted the single valid attestation and unlocked rsETH."

LayerZero has since committed that its own verifier "will refuse to sign as the sole required attestor on any channel," and said on July 10 it had completed a move of Endpoint v2 defaults to a minimum 3-of-3 configuration, with roughly 0.5% of pathways still to update. The equivalent change to Endpoint v1 defaults was rescheduled to Aug. 4 — the day BitGo announced its migration.

LayerZero's handling of the disclosure cost it more than the code did. Kelp accused it of deflecting blame in early May, before the full report was out, and on May 8 LayerZero published a post stating: "We've done a terrible job on comms over the past three weeks." LayerZero had not publicly responded to BitGo's announcement as of publication.

Fifteen Billion And Counting

Chainlink now counts $15 billion in value migrated to its infrastructure across 13 teams, per its own tally, which was first published May 20 and lists BitGo first with "$7.7+ billion migrated." Twelve of the 13 named LayerZero explicitly in their own announcements.

Lombard wrote that "CCIP will replace LayerZero as the cross-chain infrastructure across Solana, Etherlink, Berachain, Corn, and TAC." Virtuals Protocol wrote: "For agent infrastructure, 99% security is not enough."

CCIP volume reached $4.9 billion in the second quarter, a 353% year-over-year increase, according to Chainlink's quarterly review published July 24, which put migrated cross-chain token value for the quarter at over $7 billion. The Defiant covered Kraken's move and Lido's earlier this year.

"Cementing Chainlink CCIP as the exclusive cross-chain infrastructure for WBTC and future BitGo-issued assets is another major milestone towards establishing the secure DeFi ecosystem users demand," said Johann Eid, chief business officer at Chainlink Labs, in BitGo's release.

LINK traded at $8.14 on Aug. 4, down 1.3% over 24 hours and 1.9% over the week, per CoinGecko. ZRO traded at $0.77, up 5.8% on the day but down 8.4% over the week and 15.8% over 30 days.

LayerZero V2's total value secured stands at $6.66 billion, per DefiLlama, against $7.58 billion on May 20 — a decline of about 12% across the period in which the migrations were announced.