Cryptocurrency wallet address have both a public and a private keys. Public key is safe to give out to others as this is how cryptocurrency and tokens are received from one person to another.
As a reminder, only send the same cryptocurrency/token to a corresponding address. For example, you can only send Bitcoin(BTC) to another bitcoin address. If you send ETH or Bitcoin cash to a bitcoin address you will lose your funds.
Gatecoin recommends users store their funds in a private hardware wallet. If you want to find out more about the different types of wallets click here.
NEVER give out a private key to any anyone for any reason.