Yes coinbase is a safe and secure bitcoin wallet, Currently I’ve over $3k worth of BTC in my wallet without any security issue. I’ve using just password protection for my wallet.If you need more security then you can enable google Authenticator for your coinbase wallet.You will also get $10 worth of free BTC when you sign up and make $100 of transaction. Click the link below to signup now.Coinbase- Best bitcoin wallet
Once your crypto balance becomes larger (i.e. over $50,000), you should move your crypto assets offline. A hardware wallet like Ledger Nano S is one of the preferred options.