With this thread you got one leason learned 1. NEVER STORE YOUR MONEY INTO A EXCHANGE. Cryptocurrency its really safe if you learned how to use it. use your personal wallet if can buying some Ledger Wallet for store your crypto.
I agree, you could only put your token or coin in a exchanges once you want to trade, to prevent from being hacked again by those master hackers. And you make it sure that you're using hard wallet like what you had mentioned because when you just using Mew wallet it will easily being hackeed, even you keep your private key. In safe because new is just soft wallet which is less security.
Crypto currency is not yet safe, your security will be depends on you, on how you secure your private key. On how you secure your coin. And don't be easily believe to those people who just contact you in social media.
yes indeed its the risk of investing in cryptocurrency, just learn about the basic things to secure private key would really help you and also right now there is a blockchain antivirus that might be good to protect our PC , its called romad, take a look i believe you would love it.