What is mask network mask?

Could you elaborate on the concept of "Mask Network Mask" in the context of cryptocurrency and finance? I've heard it mentioned in a few discussions lately but I'm not entirely clear on its purpose and functionality. Specifically, how does it work? What are the key features that differentiate it from other similar projects? And finally, what potential implications or use cases do you foresee for Mask Network Mask in the broader cryptocurrency ecosystem?