Starknet back online after four-hour outage, warns some transactions may be affected
Downtime can have knock-on effects across decentralized finance and other onchain applications.

What to know:
- Starknet has been fully restored following a four hour outage earlier on Monday, adding that some transactions submitted during a narrow window may not have been processed correctly.
- Downtime can have knock-on effects across decentralized finance and other onchain applications, including stalled swaps, delayed withdrawals and difficulty updating positions.
Starknet said X that service has been fully restored following a four hour outage earlier on Monday, adding that some transactions submitted during a narrow window may not have been processed correctly.
“Starknet is back online and fully operational,” the team behind the Ethereum layer-2 network posted on X. The team warned that transactions were sent between 9:24 a.m. and 9:42 a.m. UTC could have been affected, and said a full retrospective, including a detailed timeline, root cause analysis and long-term prevention measures, will be published at a later date.
Downtime can have knock-on effects across decentralized finance and other onchain applications, including stalled swaps, delayed withdrawals and difficulty updating positions. It can also disrupt sequencer-based networks, where transaction ordering and block production depend on a smaller set of operators than on Ethereum itself.
CoinDesk reached out to the team for comment but did not hear back in time for publication.
The price of its native token, STRK, remains little changed according to CoinMarketCap, up at just 1.92% over the last 24 hours.
UPDATE (JAN 5, 2026 - 16:11 UTC): Updates story to reflect that the outage has ended.
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A draft XRPL amendment notes that flash loan attacks are "structurally impossible" on the network because of how its transactions are built, an architectural quirk that has spared the chain from the exploit class that has cost Ethereum DeFi billions.
知っておくべきこと:
- Recent DeFi exploits on protocols like Thorchain, Drift and KelpDAO have relied on flash loans, a mechanism that does not exist on the XRP Ledger.
- Because XRPL transactions are atomic and cannot include composable intra-transaction calls, flash loan attacks are structurally impossible on the network.
- As XRPL pursues AMM upgrades...











