Defi, a general term used to identify anything finance built in a decentralized medium and over time it has created several opportunities and great ROI from delegating of funds to lending and so much more.

ZK (Zero-Knowledge) Proof or ZK Protocol is fairly a new technique of cryptography that was first introduced in 1985 by MIT researchers Shafi Goldwasser, Silvio Micali & Charles Rackoff. All of them