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Knowing how to buy and sell <a href="https://hackernoon.com/tagged/cryptocurrency" target="_blank">cryptocurrency</a> on a crypto exchange is not enough, you need to have a secure crypto wallet where will store your assets. Just like walking holding all your hard earned money on your hands can be risky, leaving your digital tokens on the exchange can be a big risk. If the exchange gets hacked, you coins could disappear into thin air.