Incident Overview
On January 14, 2026, the Sui Network experienced a mainnet outage that affected applications and transactions globally. The incident, led by the Sui Core team and validators, highlights potential vulnerabilities in blockchain networks and emphasizes the need for robust safety mechanisms to maintain trust and stability within the cryptocurrency ecosystem.
Details of the Outage
The Sui Network encountered a significant outage on January 14, 2026. A network stall halted activities, leading to a temporary freeze of over $1 billion in SUI tokens. Validators worked promptly to resolve the issue.
The Sui Core team and Mysten Labs validators spearheaded the resolution efforts. Real-time updates informed users that operations were swiftly restored as the network resumed normal functionality.
This incident led to the temporary disruption of distributed applications like Slush or SuiScan. Transactions were interrupted, although read-only queries remained functional without affecting user funds.
Impact and Resolution
Despite the halt, financial losses were averted, with significant network stability concerns. Market impacts included a minor SUI price drop of 6%, reflecting broader market trends.
While the immediate impact was major, the outage statistics showed systematic resilience, with prior incidents resolved similarly. No damage was recorded for dApps relying on the Layer 1 SUI asset.
Incorporating automated tools and expanding consensus testing are planned improvements post-incident. Historical data shows recurrent outages, but with effective swift responses mitigating financial impact on users.
Official Statement on Resolution
Earlier today, Sui experienced its first network outage due to a bug in congestion control code, which had been recently upgraded to allow for better shared object utilization. Sui contributors quickly deployed a fix restoring normal network activity in 2.5 hours. The rapid...