Investing in Cryptocurrency. Bitcoin is back in the headlines after a three-year respite. It’s discussed on CNBC daily, and political figures, financial gurus and regulatory officials are repeatedly asked for their opinion. At this point, much attention has been focused on what Bitcoin is and how it works, but that in some ways, is the easy part. Assuming the underlying blockchain technology works, is Bitcoin or any other of the cryptocurrencies something investors should consider for their portfolios? That’s the more difficult question.