Incident Background and Findings
On January 14, 2026, the Sui blockchain faced a significant service disruption lasting six hours, halting network transactions and checkpoint certifications. On January 16, the team released a detailed post-mortem report identifying the root cause as internal consensus divergence among validator nodes.
Technical Details and Impact Scope
The incident was not linked to excessive network load, external attacks, or security breaches. The Sui team reassured users that all assets remained safe and unaffected throughout the outage.
Future Enhancements
To prevent recurrence, Sui plans to strengthen the resilience and fault tolerance of the consensus mechanism, along with improving synchronization processes among validator nodes.