Resolv's USR Stablecoin Crashes About 70% After $80M Private-Key Breach

Resolv's USR, designed to trade at $1, has collapsed to about $0.27 after an exploit that created tens of millions of dollars in unbacked supply. Resolv Labs said over the weekend that an attacker gained unauthorized access to protocol infrastructure via a compromised private key and minted roughly $80 million of uncollateralized USR. The team paused smart contracts and burned around 9 million of the illicitly minted tokens, but a large portion remains in circulation. The incident highlights a key distinction from smart-contract bugs: private-key compromises are infrastructure failures that audits cannot fully mitigate. Resolv now reports total USR supply of about 173 million tokens, made up of 102 million issued before the incident and approximately 71 million minted illicitly that are still circulating. As of Monday morning, the protocol held about $95 million in assets, down from $141 million cited in its initial statement as redemptions accelerated. Against roughly $173 million of outstanding USR, that implies a collateralization ratio near 55%. Resolv is facilitating redemptions for pre-incident holders via an allowlist process targeting March 23. If those holders redeem first, the roughly $95 million in remaining assets would be absorbed by the 102 million legitimate USR, equating to about $0.93 on the dollar for those able to redeem. Market pricing remains highly volatile. CoinGecko shows USR at $0.27, down 72% over the past week and 61% in the last 24 hours. The 24-hour range spanned $0.14 to $0.82. Daily trading volume reached $8.4 million versus a market capitalization of about $54 million, indicating a large share of the remaining supply changed hands in a single day. DeFiLlama data shows Resolv's total value locked peaked near $684 million in February 2025, then trended lower through the year to around $95 million before the exploit. The protocol had raised $10 million in funding and was producing about $5.28 million in annualized fees, a revenue stream now effectively wiped out. Ledger CTO Charles Guillemet warned on X that the exploit "will create bad debt on some lending markets, particularly in specific pools," noting that some Morpho pools using USR as collateral had already been exited. Resolv said the underlying collateral was not directly compromised and described the event as "unauthorized third-party actions, including a targeted infrastructure compromise and cyberattack." The team said it is working with law enforcement and on-chain analytics firms and will "pursue all available avenues to recover assets." Resolv also urged users not to trade USR or related Resolv tokens while recovery measures are underway, adding that user actions in the post-exploit period may affect recovery—language that suggests trading activity could complicate any future claims process.