Is there a difference between a GFI and a GFCI?

Good afternoon, esteemed financial experts. As a keen observer of the cryptocurrency and finance landscape, I often encounter technical jargon that piques my curiosity. Today, I'm particularly intrigued by the distinction between GFI and GFCI. Could you elaborate on the fundamental differences between these two terms? Are they related in any way, or do they serve entirely distinct purposes within the realm of finance? Additionally, I'm curious to know if these abbreviations are commonly used in the cryptocurrency industry or if they're more prevalent in traditional finance. Your insights would be greatly appreciated. Thank you for your time and expertise in this matter.