Here's a tool I wrote which is basically an automated version of what's described in the article: <a href="https://github.com/brndnmtthws/optimal-buy-gdax" rel="nofollow">https://github.com/brndnmtthws/optimal-buy-gdax</a>
It's a competent basic guide on how to invest, but it doesn't explain how you trade crypto back into cash and the problems associated with that.<p>>Coinbase is the safest and most secure online cryptocurrency site. Always start with Coinbase. You can be quite confident your money and personal information is secure.<p>No, you can't be confident of that. Buyer beware.
Wherever you purchase some coins transfer them to your private wallet/cold storage. One thing is the need to own your keys and thereby your wallet, but you also should not trust that your exchange will keep your coins safe, or even that the exchange will be there tomorrow.