Ontology suspended mainnet block production on August 31 at 09:09 UTC to investigate a potential security concern identified during a daily security check. The network pause represents a preventive measure while the project's technical team and validators review the issue.
A public node snapshot showed the chain's last recorded block at 20,770,893, timestamped at 08:24:26 UTC on August 31. More than five hours elapsed before the snapshot was captured at 13:30:49 UTC, confirming the network halt.
Ontology reported that no security incident or asset loss had been confirmed at the time of the announcement. The project stated that its ONT and ONG crypto assets, along with other on-chain assets, remained unaffected based on its preliminary assessment. The company said it would not process on-chain transactions while block production remained suspended.
The project did not disclose the specific technical condition under review, which systems might be involved, or the criteria for resuming operations. Ontology also announced no restart timetable, stating only that it would issue a separate announcement before or when the network resumed.
The suspension's duration remained undetermined at the time of the announcement, with further updates expected as the technical review progressed.
