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The Polylog Crypto Intelligence Brief

Morning Edition · Tuesday, July 21, 2026Published at 1:29 AM EDT · New York

Governance, Oracle and Flash-Loan Exploits Drain Roughly $35 Million From DeFi in a Single Week

BonkDAO lost $20 million to a malicious proposal, Bonzo Lend $9 million to price manipulation, and Summer.fi $6 million to a vault accounting flaw before shutting down.

Governance, Oracle and Flash-Loan Exploits Drain Roughly $35 Million From DeFi in a Single Week

Decentralized finance (DeFi) recorded a concentrated series of losses, each traceable to a distinct attack vector. BonkDAO lost about $20 million in a governance attack: the attacker bought roughly 1% of the BONK token, concealed a treasury…

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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.