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.
They have been investigating the leaked and hopefully we can see a result of their unbiased investigation which we cannot guarantee since they are the one who are doing the investigation, they have the right to hide information that might ruin their reputation and maybe publish a false information to ensure people will still have the trust and confidence using the site but it's up to us now if we still trust the site after all the recent hacks from this exchange.