Aztec Network has suffered losses exceeding $2.15 million following an attack on its RollupProcessorV3 contract. The breach was identified by BlockSec Phalcon, who noted that the vulnerability stemmed from a mismatch between zero-knowledge (ZK) proofs and Layer 1 (L1) settlement boundaries. This discrepancy allowed the attacker to manipulate transaction slots, bypassing the `decreasePendingDepositBalance()` function and minting unsupported private balances. The attacker exploited this flaw to withdraw funds across seven different assets, effectively moving legitimate deposits into unprocessed slots. The incident highlights critical vulnerabilities in the integration of ZK proofs with L1 settlement logic, necessitating immediate attention to prevent future exploits.