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The Polylog Crypto Intelligence Brief

Morning Edition · Thursday, July 9, 2026

Summer Finance Loses About $6 Million to a Flash-Loan Accounting Exploit as 2026 DeFi Losses Pass $840 Million

The attacker used a 65.4-million-dollar flash loan to distort how a vault valued its assets, redeem more than it deposited, and route the profit into a stablecoin.

Summer Finance Loses About $6 Million to a Flash-Loan Accounting Exploit as 2026 DeFi Losses Pass $840 Million

The decentralized-finance protocol Summer Finance, also known as Summer.fi, lost an estimated 6 million dollars on July 6 in what analysts described as a flash-loan attack. According to the security firm CertiK, cited in that reporting, the…

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Bridge and Mint Exploits Sustain Heavy DeFi Losses

Over 3-6 months, recurring bridge proof-validation and unauthorized-mint exploits keep monthly DeFi losses elevated, including drains of deprecated contracts.