The crosschain bridge posted an urgent alert on X on November 10, saying its team is investigating an issue with the Across domain.

Users are told not to visit the app, connect a wallet, or sign any transaction or approval there until further notice.

Across says it has moved more than $40B across chains for over 5M wallets. The project has not yet said whether funds or smart contracts are affected and promised further updates.

Domain incidents are a common route for front-end attacks, where a compromised site prompts users to sign malicious approvals. Users who interacted with the app recently may want to review and revoke token approvals.