Oracle Wars: The Rise of Price Manipulation Attacks

This article explains how blockchain oracles and Time-Weighted Average Price (TWAP) mechanisms function and why they are critical dependencies in DeFi; it details how attackers exploit oracle/TWAP weaknesses (often using flash loans) with historical examples like the bZx, Mango Markets, and KiloEx incidents, and offers defensive measures—such as multi-source feeds, audits, sanity checks, anomaly detection, and circuit breakers—to reduce manipulation risk.