I think no one is really safe from these kind of hacking or phising links because they are always one step ahead in technology and they can even successfully hack a well-guarded exchange. Binance is one of largest cryptocurrency exchange and the most profitable so it is always a target by those who want to get a significant share of their fund through illegal means. Binance should fully investigate this 'KYC leak' because it might cause a serious damage to their exchange's future operation.