今天打开网站，发现数据报错，查了一下，居然发现Mongodb的数据全消失，真奇怪，为何会莫名其妙地消失，我纳闷了半天，难道是自己误操作？不可能呀。

接着就发现数据库里多了这样的一个数据库，名字为 READ ME TO RECOVER YOUR DATA，查看里面的信息，居然发现被黑了，我的天。

对方的留言内容：All your data is a backed up. You must pay 0.043 BTC to 1Kz6v4B5CawcnL8jrUvHsvzQv5Yq4fbsSv 48 hours for recover it. After 48 hours expiration we will leaked and exposed all your data. In case of refusal to pay, we will contact the General Data Protection Regulation, GDPR and notify them that you store user data in an open form and is not safe. Under the rules of the law, you face a heavy fine or arrest and your base dump will be dropped from our server! You can buy bitcoin here, does not take much time to buy https://localbitcoins.com or https://buy.mo  onpay.io/ After paying write to me in the mail with your DB IP: recmydb+1562y@onion   mail.org and/or mariadb@mailne  sia.com and you will receive a link to download your database dump.

之前了解过有人的数据被黑，没想到这才没几天，自己居然也碰上这样的情况。想必是有人专业干这个行当的，大家千万要加强Mongodb的安全性了。

看来需要马上重装Mongodb,修改端口，设置安全验证账号。

安全问题真的要万分注意。