Binance breach hit shrinking stablecoin market as Aave froze reserves

Binance breach hits a market already shrinking

Binance reported a security breach on October 29 that impacted about $6.34 billion in assets. The incident reached a stablecoin market that was already contracting. A stablecoin is a token designed to keep its price near $1.

DeFiLlama data put total stablecoin market value at $293.8 billion by November 3. That was down about $10.8 billion over 30 days. A separate historical series from the same source fell from $308.8 billion on October 4 to $303.3 billion on October 27.

The numbers behind the 30-day decline

• Stablecoin market value: $293.8 billion by November 3, down over $10 billion in 30 days.
• USDT and USDC accounted for about $8.4 billion of the implied decline, based on rounded values and percentage changes.
• Aave's total value locked fell about $1.030 billion between October 27 and November 3, from $17.435 billion to $16.405 billion.
• Lido fell $713 million in the same period, from $22.557 billion to $21.844 billion.
• JustLend, Morpho and Sky also fell, by $437 million, $358 million and $312 million respectively.

Total value locked, or TVL, means the value of assets deposited in a protocol. Falling token prices can lower TVL even if depositors do not move assets. A lower TVL alone does not prove capital flight or insolvency.

What Binance and LlamaRisk reported

Binance said in its November 3 report that about $6.34 billion in assets were impacted on October 29. The company said it would absorb the financial impact.

LlamaRisk, Aave's risk service provider, reported that an exploiter-linked wallet supplied 60 million USDT to Aave and borrowed 19,762 Wrapped Ethereum, worth about $44.6 million at the time. Its October 30 assessment said the position was overcollateralized, meaning the collateral value was higher than the borrowed amount. It also said the position was subject to normal liquidation and did not put suppliers at risk.

Aave freeze blocks deposits but allows withdrawals

Guardians froze 175 Aave V3 reserves and 117 V4 reserves. New supply and borrowing stopped in frozen reserves. Repayments, withdrawals and liquidations remained enabled.

That meant suppliers could withdraw available tokens, but fresh deposits could not replace them. LlamaRisk said withdrawals pushed some large reserves to 92% to 100% utilization. Utilization means the share of supplied funds that are borrowed. At that level, almost all supplied funds were borrowed, borrowing costs rose, and stewards temporarily reduced the upper part of interest-rate curves.

Affected reserves had reopened by October 31. LlamaRisk said on November 2 that specified non-stablecoin collateral settings were restored. It also said affected reserves returned to pre-incident rate curves on November 1. USDT, USDC and USDT0 still had zero collateral borrowing power in affected configurations, meaning they could not be used to borrow against.

Why thinner stablecoin liquidity matters

Issuer redemptions turn circulating stablecoins back into fiat currency, which differs from moving tokens between wallets or exchanges. Freezing stolen tokens also does not automatically remove them from supply.

The practical risk is available liquidity where it is needed. Thinner trading pools can cause more slippage, which means a trade moves the price more. Withdrawals from lending pools can raise borrowing costs. Falling collateral prices can increase liquidation exposure.

Conditions would look healthier if stablecoin net issuance rose again, lending deposits returned, reserve utilization fell, and collateral prices steadied. A rebound in dollar TVL alone would not show lending cash returned.

Sources

• CryptoSlate

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