The massive $1.5B Bybit crypto hack has turned into an interesting case study which has been extensively analyzed by industry participants.

Bybit has returned to a 1:1 backing of client assets and has fully closed the “ether gap” it faced after an unprecedented $1.4 billion hack hit the exchange late Friday.

Bybit, one of the world’s largest cryptocurrency exchanges, experienced a hack Friday in which over $1.4 billion worth of crypto was stolen, according to blockchain-analytics firms. It’s the latest incident for an industry struggling with security concerns that present hurdles to mainstream adoption.