Beyond cash back, points, and miles, some rewards credit cards can now help you tap into a new rewards currency: crypto. According to a recent Gallup poll, just 14% of adults in the U.S. own cryptocurrency — and 60% say they’re not interested in ever buying it. But some crypto companies believe that crypto rewards credit cards could change that. While these cards may make bitcoin and other digital assets more accessible, they can also be risky. Here’s what to know before you opt in. What is a crypto cre ...