Blocking Multi-Signature Vulnerabilities: How Q402 Layer Reshapes Pre-emptive Security for Treasury Multi-Sig Wallets (Multi-Sig) Multi-sig wallets often trigger black swan incidents due to “co-signers mistakenly approving malicious proposals” or “private keys stolen via social engineering.” Traditional governance lacks proactive interception mechanisms, but the Policy-Aware architecture of the Q402 Layer is built for exactly this purpose. Under the Q402 protocol, even if an attacker amasses enough multi-signature approvals to initiate Sign-to-Pay, the transaction must still pass mandatory on-chain smart policy checks at the execution side (e.g., daily withdrawal limits, whitelisted routes, or time locks). Combined with EIP-7702 integration, ordinary treasury accounts do not need to replace wallets to gain this “programmable safety valve” in-place. Q402 moves defense from post-incident auditing to the exact moment of execution, completely eliminating the risk of assets being wiped to zero due to human error or unauthorized actions. $Q