Security is necessary, whether you are storing the objects with a market value. This applies to barter systems as well as economies using currency as a medium of exchange. We know that banks store balances on a private ledger, cryptocurrencies on the other side, store balances under unique addresses on a distributed public ledger. The cryptographic private keys to access the balance stored on each public address are therefore the object of value in this system. Following you can find methods which will help to keep these keys safe in your wallets:
Cryptocurrency wallets, like the ones below, help you store your Dash coins so they're not exposed on an exchange.