i prefer to use coin.ph this is the trsuted wallet in our country and this is secured but if you want to use more secure wallet try to use coinbase that is the best wallet un US and i think coin base is trusted dont forget your password because if you forget your password in some wallet its that your fault 
You are recommending him web wallets which are not secure. The provider of the service could be for example hacked and you would lose all your money. That's why it is important to use wallets which allow you to control your own private key. Electrum is free and open-source so you can easily check if there are any backdoors. It is great alternative for hardware wallets which usually cost a lot but are far more convenient to use in my opinion.