Two multi-chain contracts have been compromised, resulting in losses exceeding $17 million. The attack, detected by BlockSec Phalcon, involved suspicious transactions across Ethereum, Arbitrum, Base, and BSC networks. The contracts, which are not open-source, were exploited through arbitrary function calls and existing token approvals, allowing the attacker to drain assets using `transferFrom`. The contract deployed by 0xbeef63AE5a2102506e8a352a5bB32aA8B30B3112 suffered a loss of approximately $3.67 million, while the contract by 0x9cb8d9BaE84830b7f5F11ee5048c04a80b8514BA lost around $13.41 million.