Coins should always be considered in a safe storage, there are lot of wallets and platform that could be used to hold coins, both of this has good side and bad. Where will you choose to store or hold your coins, in a close source wallet (exchanges) or an open source wallet like electrum and Hodler wallet?
I will store my coins in ETH wallet because of the safety and absolute security which ETH brings. I do not choose to store coins on exchange sites because hackers are always looking for ways to attack the exchanges. That always brings a lot of danger to my property.