Price Manipulation
Price manipulation occurs when an actor intentionally influences the market price of an asset to trigger liquidations or profit from mispriced derivatives. In the context of DeFi, this often involves exploiting low-liquidity pools to artificially move the price of an asset that serves as a collateral reference.
By forcing a price spike or drop, an attacker can trigger a wave of liquidations, allowing them to purchase assets at a discount or avoid their own margin calls. This is a significant threat to protocol security, as it exploits the reliance on decentralized oracles.
Mitigating this risk requires robust price aggregation and circuit breakers that detect anomalous market activity. It is a classic example of behavioral game theory in action.