JB Hack
What happened
On June 19, 2026, the JB token system on BNB Chain suffered a flash-loan-assisted price-manipulation exploit that drained approximately $50K from trading liquidity.
How it happened
The attacker borrowed flash liquidity, distorted the reserve or balance used as a price input, executed a pricing-sensitive token operation at the manipulated valuation, and unwound the position in the same transaction.
Protocol details
Evidence
Understand the attack patterns
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