The Bybit hack suggests that current multi-signature cold wallet security practices are insufficient, and the industry should consider adopting multi-party computation (MPC) wallets to prevent similar future incidents, learning from the Wazir X hack.
"if multi- signature cold wallets at a major exchange with a previously spotless security record aren't safe then our best security practices may need updating Although the methods used in this case were comparable to those used against Wazer X last year So perhaps the industry should have learned a lesson back then and switched to multi-party computation wallets which might have prevented the bybit hack"