
Sui’s post-mortem confirms a consensus bug caused the January 14, 2026 outage, halting network activity for six hours while keeping all user funds safe.
Sui has released a post-mortem on its January 14, 2026 network outage, revealing a consensus bug was responsible for halting block production and transactions for about six hours. Network activity resumed after validators applied fixes, and no user funds were lost or compromised. Over $1 billion in on-chain value was frozen during the downtime. This marks the second major consensus-related disruption for Sui since November 2024.