According to CoinMeta, Ontology stated on the X platform that the team discovered potential security vulnerabilities during routine security checks and has paused mainnet block generation for a security review. Ontology emphasized that no security incident has been confirmed yet, and user assets have not been affected; ONT, ONG, and other on-chain assets are also unaffected. This pause is a preventive security measure, and the time for recovery has not yet been determined.