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Nomic Double-Spend Leaves a Third of Osmosis Bitcoin Unbacked
On 9 September 2026, Osmosis halted deposits, withdrawals, and redemptions for its alloyed Bitcoin token after a double-spend exploit on the Nomic chain. An emergency upgrade locked about 22 BTC in the attacker's address, leaving a third of Osmosis Bitcoin unbacked.
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What happened
On 9 September 2026, Osmosis halted deposits, withdrawals, and redemptions for its alloyed Bitcoin token after a double-spend exploit on the Nomic chain. An emergency upgrade locked about 22 BTC in the attacker's address, leaving a third of Osmosis Bitcoin unbacked.
Confirmed
Global impact / market context
This exploit damages trust in wrapped Bitcoin tokens, which are meant to be backed by real Bitcoin. If the locked funds are not recovered, users holding the alloyed token could suffer losses, and other platforms may rethink similar token designs.
Analyst inference
The event highlights risks in cross-chain bridges, where digital assets are represented on other networks. Such failures can lower investor confidence in DeFi platforms and may lead to stricter security checks or reduced investment in similar projects, affecting Bitcoin-based token markets.
Analyst inference
What to watch
- Watch whether Osmosis restores deposits, withdrawals, and redemptions for its alloyed Bitcoin token, and if the locked BTC is returned to backing or remains inaccessible. Confirmed
- Proposal: Investors should monitor updates from Osmosis and Nomic about compensating affected users, as the unbacked portion may trigger redemptions at a discount or require a bailout. Proposed
- Watch if other DeFi platforms pause similar Bitcoin-backed tokens or review their bridge security, which could reduce cash available and affect prices across wrapped Bitcoin assets. Analyst inference
Affected assets
- BTC — Bitcoin