Security Measures 1. Smart Contract Access Control: onlyOwner modifier on all critical functions. Reentrancy: nonReentrant guard on execution paths. Safety: Reverts on any unprofitable trade or failed repayment. 2. Key Management Environment Variables: Private keys are loaded from .env and never logged. Wallet Separation: Use a dedicated EOA for the Flashbots auth key (reputation only). 3. Bot Logic Circuit Breaker: Stops execution if rolling PnL drops below the threshold. Nonce Management: Per-wallet Mutex prevents race conditions. Simulation: Mandatory revm simulation before any submission.