Business01 December, 20252 min read
Hackers Steal $9M From Yearn Finance, Trigger Crypto Market Sell-Off
This article is an automated aggregation of coverage from news outlets. Our editorials offer in-depth analysis curated by the NewsCord team.
Attacker minted trillions of fake yETH tokens, stealing about $9 million Major cryptocurrencies slumped: Bitcoin fell ~3% to ~$87,000; Ether fell ~5%
8 outlets told this the same way.
Yearn yETH Exploit Summary
A November exploit on Yearn Finance’s yETH liquidity pool drained one pool, while V2 and V3 vaults were reported safe. Security firm PeckShield and reports estimated the loss at roughly $9 million and said the attacker-controlled wallet (0xa80d…c822) held about $6 million in tokens.
“Security firm PeckShield said the attacker minted a large amount of yETH in one transaction, drained liquidity, and used mixers to siphon roughly 1,000 ETH (about $3 million). Yearn’s total estimated loss was ~$9 million; the attacker’s wallet (0xa80d…c822) still holds roughly $6 million in tokens.”
The breach followed other large incidents, notably a multi‑million‑dollar hack of South Korea’s Upbit, and occurred as markets were already fragile, amplifying the immediate sell‑off in crypto markets. Observers said the attacker minted a large amount of yETH in a single transaction, drained liquidity, and used mixers to move funds off‑chain.
Crypto market sell-off summary
The exploit triggered an immediate market reaction: an early Asian-session sell-off forced over $400 million in liquidations of leveraged crypto futures, mostly long positions. A rapid sell-off knocked total crypto market capitalization down about 4%, with Bitcoin and Ether both giving up significant gains. Data and reporting show the drawdown erased a short recovery for Bitcoin and extended November’s losses into the final month of the year, with many traders caught off-guard by the swiftness of the unwind.
November crypto price moves
Price moves were sharp: Bitcoin briefly surged from near $80,000 to above $90,000 late in the month but still closed November down materially. Ether posted its worst monthly performance since February, falling roughly 22%.
“Bitcoin briefly rose from near $80,000 to above $90,000 late last month but still closed November sharply lower. Ether fell about 22% for the month — its worst monthly showing since February.”
Yearn's governance token YFI dropped about 4.4% amid the news. The rapid reversal erased recent short-term recoveries and compounded November's heavy losses for major tokens.
ETF outflows and macro catalysts
Analysts and reporters pointed to weakening institutional demand and ETF flows as amplifiers of the price fall. U.S.-listed spot Bitcoin ETFs recorded large net outflows in November and Ether ETFs saw record outflows. Some coverage tied those outflows to inflated valuations that were not matched by better security practices.
Separately, macro developments such as Japan's rising 2-year government bond yield were cited as additional catalysts. These accounts showed the incident's impact blended security failures with broader market stresses.
Yearn post-exploit status
The post-exploit landscape remains uncertain. No coordinated recovery plan has been announced. YFI has fallen modestly and further forensic and market updates are still being provided.
“No recovery plan has yet been announced after the recent attack.”
At least one source noted the absence of a full article text on related analysis. This leaves open questions about Yearn’s remediation, asset tracing, and possible recovery actions. The attacker’s wallet still retains a multi-million-dollar position.
