This is a critical question and something many developers face when building custodial wallets. Several key mistakes can cause projects to fail 1.Poor private key management Many developers mishandle private keys, putting user funds at serious risk. Storing keys insecurely or without encryption makes wallets vulnerable to hacks. Proper key storage and strong encryption are essential for user trust. 2.Ignoring compliance Skipping KYC/AML and local regulations can lead to legal troubles. Non-