Flash Loan Attack Surface
The flash loan attack surface encompasses the risks associated with borrowing massive amounts of capital without collateral for a single transaction block. Because the loan must be repaid within the same transaction, attackers use this liquidity to perform massive market movements.
They often combine this with other exploits like oracle manipulation or arbitrage to drain protocol funds. This creates a unique environment where the cost of an attack is near zero, provided the attacker can identify a vulnerability.
Protocols must design their systems to be resilient against sudden, massive influxes of capital that do not originate from organic users. The existence of flash loans has fundamentally changed the security requirements for decentralized lending and trading platforms.