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Oracle Error Leaves DeFi Lender Moonwell With $1.8 Million in Bad Debt

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A critical oracle pricing glitch has left decentralized lending platform Moonwell grappling with nearly $1.8 million in bad debt.

A misconfigured oracle briefly valued Coinbase Wrapped ETH (cbETH) at just $1 Sunday morning, triggering a sudden cascade of liquidations, in a sobering reminder of the fragility lurking in DeFi infrastructure.

Key Takeaways

  • Oracle Failure: A configuration error in Chainlink OEV wrapper contracts caused the system to price $2,200 cbETH at a 99.9% discount.
  • Bad Debt Event: Liquidators seized collateral by repaying mere pennies on the dollar, wiping out 1,096 cbETH and leaving the protocol with $1.78 million in bad debt.
  • Risk Signal: The incident highlights systemic liquidity risks, mirroring concerns seen as BlockFills freezes withdrawals due to counterparty exposure.

What Caused the Oracle Failure on Moonwell?

According to the postmortem on Moonwell’s Discord, the trouble started Sunday at 6:01 PM UTC following the execution of governance proposal MIP-X43. This upgrade enabled Chainlink OEV wrapper contracts on Base and Optimism, but one feed contained a fatal flaw.

According to risk management firm Anthias Labs, the system failed to multiply the cbETH/ETH exchange rate by the ETH/USD price. Instead, it used the raw exchange rate directly.

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This resulted in the oracle reporting a price of roughly $1.12 for an asset trading near $2,200.

Reports indicate the flawed code layout may have been generated by AI tools, specifically Claude Opus 4.6, raising serious questions about audit verification standards for generated code.

Breaking Down the $1.8M Bad Debt

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Trading bots immediately pounced on the discrepancy. With the system believing cbETH was worth barely a dollar, liquidators repaid roughly $1 of debt to seize massive amounts of collateral.

In total, 1,096 cbETH was wiped out. That effectively erased the collateral for many borrowers while leaving the protocol holding the bag for the unpaid loan value.

Moonwell’s risk manager, Anthias Labs, moved fast to contain the bleeding. They reduced supply and borrow caps to 0.01 to prevent new users from entering the broken market.

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This type of sudden liquidation cascade shows why Ethereum faces crash risks whenever on-chain leverage is mispriced.

Discover: The best new crypto on the market

What This Means for DeFi Lenders

While Moonwell operates across multiple chains with over $90 million in TVL, this incident shakes confidence in automated governance execution. Users must now wait for a governance vote to fix the configuration.

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This is not an isolated event. It follows a trend of oracle-related exploits, reinforcing why decentralized protocol security is just as critical as centralized solvency.

The crypto market structure is currently fragile, evidenced by data showing Binance controls 65% of CEX stablecoin reserves.

When liquidity is concentrated and validation fails, the fallout is instant. For yield farmers, this is a signal to check whether your protocol’s code was written by a human or a chatbot before depositing.

Discover: The best meme coins in the world.

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Crypto World

Crypto Markets Fall as Bitcoin Drops 2.5% and Liquidations Near $200 Million

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The selloff continues as tensions in the Middle East rise and the Department of Homeland Security remains partially shut down.

Crypto markets slipped further on Wednesday, Feb. 18, as political and macroeconomic uncertainty continued to weigh on sentiment.

Bitcoin (BTC) is trading at $66,344, down 2.5% over the past 24 hours, while Ethereum (ETH) is at $1,953, down 2.3%. Separately, Founders Fund, a venture firm tied to billionaire Peter Thiel, disclosed it had exited its entire 7.5% stake in Ethereum treasury company ETHZilla Corp. last year, according to a recent SEC filing.

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Other large-cap tokens were also lower, with BNB down 2% near $610, XRP down 3% to $1.44, and Solana (SOL) down 4.5% to $81.

Meanwhile, the total cryptocurrency market capitalization stood near $2.37 trillion, down 2% over the past 24 hours. Daily trading volume was around $88.5 billion, according to CoinGecko.

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Among top gainers, World Liberty Financial (WLFI) rose 15.7%, following news of top Wall Street CEOs preparing to headline at the World Liberty Forum.

Cosmos Hub (ATOM) also climbed 6.2%, while Provenance Blockchain (HASH) rose about 5%. HASH’s rally comes shortly after Figure announced that pricing has officially closed for FGRD, the first public equity trading natively on the Provenance blockchain.

On the downside, pumpfun (PUMP) fell around 11%, MemeCore (M) dropped roughly 7%, and Bittensor (TAO) slipped about 6.3%.

Liquidations and ETF Flows

Around $192 million in leveraged crypto positions were liquidated over the past 24 hours, according to CoinGlass. Long liquidations accounted for about $134.6 million, while shorts made up $57.4 million.

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Bitcoin led liquidations at about $66.7 million, followed by Ethereum at roughly $53.7 million. More than 84,000 traders were liquidated during the period.

In the ETF market, Bitcoin spot ETFs recorded $104.87 million in net outflows, while Ethereum spot ETFs recorded $48.63 million in inflows. XRP spot ETF flows were flat on the day, while Solana spot ETFs recorded $2.19 million in inflows.

Elsewhere

In other markets, precious metals moved higher on the day, with gold trading around $5,000, up 2% and silver rising 4.3% to $77.49. Platinum gained 3.3% to $2,098, while palladium added nearly 2% to $1,742.

Political uncertainty also remained in focus as the White House did not give a clear timeline for talks with Iran amid rising tensions in the Middle East.

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Meanwhile, negotiations between Ukraine and Russia concluded, with further discussions expected. In Washington, conflict over reopening the Department of Homeland Security, which is partially shut down, persists, CNN reported.

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Peter Thiel lost tens of millions in ETHZilla

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Peter Thiel lost tens of millions in ETHZilla

Peter Thiel, as of December 31, has fully divested from ETHZilla, his ether (ETH) gobbling company that’s currently down 98% from its 52-week high.

Those sales finalize losses for Thiel’s investment that exceeded $200 million at the company’s brief, exuberant peak in August.

On August 4 last year, ETHZilla (under its prior Nasdaq-listed name, 180 Life Sciences) closed a $425 million private investment in public equity (PIPE).

Separately, Thiel’s funds had also invested by August 4, 2025, disclosing aggregate beneficial ownership of 11,592,241 shares. Thiel’s quantity was then worth about $40 million or 7.52% of 180 Life Sciences’ 154,032,084 shares outstanding.

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Although charts show an ETHZ trading range of $27.22-$35.70 on the day before Thiel’s investment, that price reflects a one-for-10 reverse share split that occurred in October. 

In actual fact, Thiel’s 11.5 million beneficially-owned shares were trading at $2.72-$3.57 the day prior to his investment, imputing an investment of approximately $40 million based on their $3.54 closing print on August 1, 2025.

He disclosed his ownership the following trading day, as required by SEC regulations.

Within two weeks of his investment, his pre-split shares rocketed from $3.54 to $17.46 on August 13 after the former biotech company announced a host of crypto investors and an ETH acquisition strategy that was enjoying a brief mania in digital asset treasury (DAT) stocks.

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Read more: Even Ethereum treasury companies are selling ETH to pay off debt

ETHZilla is down 98% from its August peak

Marked-to-market at the company’s August peak, Thiel and his funds owned over $200 million worth of stock.

Unfortunately, he hung on for months of losses.

Although Thiel trimmed his exposure from 7.5% to 5.6% by September 30, he continued to hold the vast majority of his shares — and their dwindling value.

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He wouldn’t sell the entire position until the fourth quarter — after shares had lost over 85% of their August peak value.

By the time he’d sold everything, shares were down 86% from Thiel’s August 1 closing price and 97% from their August 13 peak.

As of today, shares are down 98% from their high.

Although Thiel isn’t required to disclose his average sale prices on SEC 13G schedules, approximating his losses is elementary math. 

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If Thiel beneficially owned approximately $40 million as of his opening investment, he certainly lost tens of millions of dollars by the time he sold.

From their fleeting value above $200 million, he let well over $100 million — probably more than $150 million — in paper value evaporate.

Losses from his starting investment size likely exceed $30 million from August 1 to the average trading range during the periods in which he was selling.

Note: Above figures about Thiel’s investments include all of the funds through which he invested in ETHZilla (formerly 180 Life Sciences):

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  • FF Consumer Growth, LLC
  • FF Consumer Growth II, LP
  • The Founders Fund Growth Management, LLC
  • The Founders Fund Growth II Management, LP
  • Peter Thiel
  • FF Upper Tier GP, LLC

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Altcoin Sell Pressure Hits $209B As BTC Volumes Lead The Market

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Cryptocurrencies, Ethereum, Bitcoin Price, Adoption, Markets, Cryptocurrency Exchange, Tether, Price Analysis, Stablecoin, Market Analysis, Altcoin Watch

Altcoins, excluding Ether (ETH), have recorded $209 billion in net selling volume since January 2025, marking one of the steepest declines in speculative demand for crypto assets this cycle.

On Binance, altcoin trading volumes dropped roughly 50% since November 2025, reflecting a steady dip in activity. The decrease also coincides with an increase in Bitcoin’s volume share on the exchange.

Analysts said that the contraction in altcoin demand, alongside elevated stablecoin dominance, signals that the broader market is shifting its capital toward BTC during the current downtrend.

Altcoin spot volume imbalance deepens against Bitcoin

Crypto analyst IT Tech noted that the cumulative buy and sell difference for altcoins, excluding BTC and Ether (ETH), reached -$209 billion. The metric measures net spot demand across centralized exchanges for altcoin trading pairs. A positive reading indicates rising spot demand, which was briefly observed back in January 2025.

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Cryptocurrencies, Ethereum, Bitcoin Price, Adoption, Markets, Cryptocurrency Exchange, Tether, Price Analysis, Stablecoin, Market Analysis, Altcoin Watch
1-year cumulative buy-sell volume for Altcoins (excludes ETH). Source: CryptoQuant

A negative cumulative delta at this scale signals the absence of consistent spot buyers. The analyst noted that the metric tracks net flow imbalance rather than price valuation, so it does not indicate a market bottom. Over the past 13 months, capital has exited the altcoin markets without significant counterflows.

Volume data from Binance reinforces the shift. As BTC tested the $60,000 level in early February, the total trading volume was redistributed. On Feb. 7, Bitcoin volumes rose to 36.8% of total activity. Altcoin volumes dropped to 33.6% by mid-February, from a high of 59.2% in November.

According to crypto analyst Darkfost, similar rotations appeared in April 2025, August 2024, and October 2022. During these corrective phases, capital consolidated into Bitcoin while altcoin volumes contracted. 

Cryptocurrencies, Ethereum, Bitcoin Price, Adoption, Markets, Cryptocurrency Exchange, Tether, Price Analysis, Stablecoin, Market Analysis, Altcoin Watch
Bitcoin, Altcoins volume activity. Source: CryptoQuant

Related: New Bitcoin whales are trapped underwater, but for how long?

Tether dominance rises to its all-time high level 

Tether’s USDt (USDT) market cap dominance reached the 8% level on the one-week chart, aligning with prior highs which lasted between June 2022 and October 2023. The rising stablecoin dominance typically coincides with capital moving into dollar-pegged assets rather than deploying into tokens like BTC (BTC) and Ether (ETH). 

Cryptocurrencies, Ethereum, Bitcoin Price, Adoption, Markets, Cryptocurrency Exchange, Tether, Price Analysis, Stablecoin, Market Analysis, Altcoin Watch
USDT.D and BTC price chart comparison. Source: Cointelegraph/TradingView

As observed, the elevated USDT dominance coincided with Bitcoin consolidating near bear market lows, as observed in 2022 and 2023. A decline in dominance has often marked one of the earliest signals of a renewed bullish trend.

Previously, the USDT dominance chart formed lows around 3.80-4% in March 2024, December 2024, and October 2025. These periods coincided with Bitcoin setting new all-time highs near $72,000, $104,000, and $126,000, respectively. 

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Related: Wells Fargo sees ‘YOLO’ trade driving $150B into Bitcoin and risk assets