DeFi Threat Landscape Shifts towards Cross-Chain Vulnerabilities

The DeFi ecosystem has witnessed a significant shift in its threat landscape, with legacy exploit patterns losing dominance. A newer class of cross-chain vulnerabilities is emerging, capable of impacting six chains simultaneously and amplifying the blast radius far beyond individual protocols.

This change in risk dynamics has significant implications for protocol teams, users, and institutions. The new threat model requires a shift in security audits and risk monitoring to address the systemic dependencies between chains.

A cross-chain vulnerability can cascade across multiple networks, creating a single point of failure with extensive exposure. This is structurally different from isolated exploits that targeted individual smart contracts on a single chain.