我曾经忘记删除“管理员登录页面”。该页面只是绕过LDAP登录并获得所有权限。它可以对客户的银行账户做任何事情。我非常非常担心。幸运的是，没有人知道URL。

我曾经做过一份工作，其中有一个用Java代码编写的安全层，用于检查用户是否有权编辑DB表列。这是函数的样子:

public boolean canEdit(User user, DBColumn column) {
    if(true) {
        return true;
    } else {
        return false;
    }
}

我的朋友曾经用PHP编写了一个论坛脚本。密码保存为一个名为pass.txt的纯文本文件。当然，每个人都可以访问那个文件。

整个经典ASP购物车“Comersus”。整个事情是意大利面条代码的混乱，所有的SQL语句都是成熟的SQL注入，因为没有做任何过滤。可悲的是，我不幸地处理了近两年的“申请”，这绝对是一场噩梦!

In the 1970's Stanford had IBM 2741 hardcopy terminals spread around campus networked to an IBM 360/67. Account passwords were three characters. During logon, the password prompt would overprint a three-position blob of about nine random uppercase characters, so the subsequently-typed password would supposedly be masked by the blob. However, everyone typed their passwords in lowercase, which were trivial to discern against the uppercase background blob. That meant you could usually walk up to any terminal, peruse the hardcopy typically left behind by the previous user, and easily logon with their account and password.

当我13岁的时候，我的学校为学生开设了一个社交网络。不幸的是，我发现了一个安全漏洞，可以将URI更改为另一个用户id，如“?”userID=123”，并为该用户登录。显然，我告诉了我的朋友们，最后学校的社交网络充满了色情。

不过我不推荐。