Answer: The security of DW20 can be understood from two perspectives. One is financial security: the chainless system airdrops DW20 coins and issues them as foundation funds. The function of the foundation funds is similar to the capital of a bank, providing system financial security and solving the problem of issues of system resilience and early system vulnerability. The second is transaction security: the chainless platform where DW20 is located is a highly secure circulation and settlement platform. Through the chainless platform, all current blockchain single-signature wallets can be turned into multi-signature and multi-backup wallets, and the inheritance program of the chainless setting can be adopted, making personal assets more secure than current banks, and the individual can completely control the wallet.