Osmosis: Nomic hit by nBTC double-spend; 22.65 BTC frozen in attacker wallet
AI Market Summary
A doublespend exploit on Nomic impacted 39.84 nBTC (about 36% of Alloyed BTC backing) routed to Osmosis as fake vouchers. While Osmosis and IBC were not compromised, Osmosis paused nBTC-related inflows/outflows and executed an emergency upgrade that froze 22.65 BTC in the attacker's address. Governance may seize frozen funds and potentially use community-pool BTC to re-establish full backing, raising short-term bridge and wrapped-BTC risk awareness.
Impact level
● High
Affected assets
BTC/USDT+1.29%
AI Insight · BTC/USDTAI Insight
▼ Bearish
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Osmosis reported that an exploit on the Nomic chain enabled an attacker to double-spend nBTC and route counterfeit vouchers to Osmosis. The incident did not compromise Osmosis itself or IBC.
A total of 39.84 nBTC is impacted, equivalent to roughly 36% of the backing for Alloyed BTC. In response, Osmosis has paused nBTC-related inflows and outflows. An emergency upgrade has also frozen 22.65 BTC held in the attacker's address.
Osmosis said it will pursue governance approval to seize the frozen funds and, if needed, deploy BTC from the community pool to fully restore the asset's backing.
