Sui Restores Service After Massive 6-Hour Network Outage

Sui’s blockchain resumed normal operation after a network store halted transactions for about six hours on January 14, 2026. According to reports, verifiers identified the problem in the middle of the afternoon and worked to issue a fix that restored block creation and transaction processing later that evening.
Related Reading
Timeline is Over and Restored
Based on reports, Sui’s team first flagged the problem at around 2:52 pm UTC when block production and checkpoint creation stopped. The validators applied the changes and started bringing the nodes back into sync.
Service was reported restored at approximately 8:44 pm UTC, a time of approximately five hours and 52 minutes from detection to detection. Meanwhile, no new blocks are completed and user activity is suspended across all wallets and decentralized applications.
The Sui network is now back and fully operational. The transaction is going normally. If you still see problems, please refresh your app or browser window. Thank you for your patience. We will share a full incident update in the coming days.
Please check…
— Sui (@SuiNetwork) January 14, 2026
Transactions Suspended and Price Freezed
The outage left a large amount of on-chain value inactive while the network remained idle. Reports indicate that more than $1 billion was successfully forged during the outage, although there were no signs of it being stolen or altered.
Users and apps that rely on the chain saw failed or queued transactions, and many dApps showed errors until validators completed their updates.
Cause, Reaction and Market Reaction
Reports revealed that the problem was recorded as a deadlock, which means that the process used to agree on new blocs has stopped being finalized. A complete documentation of the technical origin has not yet been published.
The Sui Foundation said a report on the incident will come out later with more details. The SUI token showed modest movement during the event, trading around $1.80–$1.85 in the hours after the network returned, with a brief spike recorded in some exchanges as the news broke.
Past Participles and Context
Sui launched the mainnet in May 2023, and this outage follows previous events that raised similar questions about the connection between authentication and timing.
The previous major outage occurred in November 2024, which also involved issues around compliance and verification operations. Developers building on Sui said many of their services experienced disrupted user flows while the thread was suspended.
Related Reading
Questions About Network Trust
Some members of the public and outside observers have asked how many steps of such a compromise can happen and what measures will reduce the occurrence in the future.
Verifiers and the Sui team said they are focusing on writing quick fixes and improving monitoring so that problems can be detected quickly. Based on the reports, the foundation plans to share some measures of the verifiers and operator nodes in the upcoming post-mortem.
Sui’s team said that transactions are working again and advised users to refresh their wallets or apps if they still experience problems.
Network operators have promised more transparency with an official incident report, which will be closely watched by developers, traders, and investors who depend on the chain’s continued operation.
Featured image from Unsplash, chart from TradingView



