信不信由你，我最近在一个网站上发现了这个:

eval($_GET['code']);

服务器甚至没有安全模式…

在签名代码中:

System.setSecurityManager(null);

(你可以通过谷歌代码搜索。)从进程中运行的所有代码中删除所有Java安全限制。可能没有想清楚。

我们有一个客户要求根据特定的HTTP引用器自动登录。所以你和我必须登录，但如果你点击了一个特定网站的链接，你就会自动以默认用户登录。

当关键IT员工离开公司时，不更改管理密码。

2007年，一家相当大的机构的国防部网站出现了错误配置，导致IIS web服务器提供原始代码，主页中有硬编码的用户名/密码和数据库服务器信息。幸运的是，它很快就被抓住了，但我确实目睹了它，这非常令人震惊。不用说，他们的网站被网络工程师关闭了，直到开发人员修复了糟糕的代码。

我们有一个旧的计算机集群，在我工作的一个实验室里没有运行。几个本科生认为，让它运行起来会很有趣，这样他们就可以学习一点并行计算了。他们让它运行起来，结果证明它非常有用。

One day I came in and was checking out the stats...It was running at 100%. Now this was a 24 node cluster and there were only 3 of us that ever used it so it was a little strange that it was running at this load. I started playing with it, trying to figure out what was loading it...turned out someone had gained access and was using it as their own little porn server and spammer. I asked the undergrads what kind of security they put on it, they looked at me and said "Security? We didn't think it would need any."

我给它加了个密码，就这样。把它用作色情服务器的人原来是一个本科生的朋友。