The Bitcoin project Solv Protocol has abandoned the cross-chain infrastructure LayerZero in favor of Chainlink's CCIP.
After an extensive security review, we have decided to deprecate @LayerZero_Core bridges for SolvBTC and xSolvBTC, and migrate to @Chainlink CCIP as our official cross-chain infrastructure solution for $700M+ in tokenized BTC (SolvBTC & xSolvBTC).
— Solv Protocol (@SolvProtocol) May 7, 2026
In light of recent industry… pic.twitter.com/t6y7v9rt8J
Developers will gradually cease support for bridges for SolvBTC and xSolvBTC on the Corn, Berachain, Rootstock, and TAC networks. The Chainlink protocol will become the primary means of interacting with these assets.
Solv explained this decision as a reassessment of risks following recent incidents in the DeFi sector.
“Cross-chain bridges remain one of the most sensitive and risky areas of the industry. Unsafe platforms create systemic risk for the entire ecosystem,” the statement read.
The team noted that during the CCIP review, it outperformed competitors in terms of security: its architecture is secure by default, and built-in risk controls and continuous monitoring are part of its core configuration.
Context
Solv's decision followed the April hack of Kelp that resulted in a loss of $292 million. The attack was linked to a bridge based on LayerZero.
The attacker exploited a single-verifier configuration and issued 116,500 unsecured rsETH. The subsequent use of these assets in DeFi protocols, including Aave, led to the creation of a significant unpayable debt.
After the exploit, the parties disagreed on the assessment of the causes. The Kelp team also announced a transition from LayerZero to CCIP.
On May 7, Aave liquidated the hacker's remaining positions in rsETH as part of an approved recovery plan.