当我第一次加入我现在工作的公司时，我的老板正在查看一个潜在新客户的现有电子商务网站。这是在IIS和电子商务的相当早期，我们可以说，安全性不那么严格。

长话短说，他改变了一个URL(只是出于好奇)，并意识到目录浏览并没有关闭，所以你可以把URL末尾的页面名称剪掉，然后看到web服务器上的所有文件。

最后我们浏览了一个文件夹，里面有一个Access数据库，我们下载了这个数据库。它是整个电子商务客户/订单数据库，充满了数千个未加密的信用卡号码。

我投票给Ken Thompson的UNIX“后门”。

这里有一个链接，有人可以从中了解更多信息: 汤普森木马编译器

我之所以认为这是最糟糕的，是因为在那个时候，法官们认为，在这种事情上取得进展的最好方法是公开讨论。

这一切只是教会了一群脚本小子一个新的非常强大的技巧。

一位同学曾经不小心把密码发到了推特上……那是个很严重的安全漏洞。

在文本框中输入1=1将列出系统中的所有用户。

About 3 years ago I built a site for a somewhat large non-profit organization in our state. When it came time to deploy the application to their web host server, I noticed an odd file named "cc.txt" or something obvious like that in their public site. It was under their web root, was getting served, and was a csv file of all their donor's names, addresses, credit card numbers, expiration dates, and CVV/CVC codes. I cannot count the number of times I brought the issue up - first to my boss, then our company accountant, the client's IT director, finally the client's President. That was 3 years ago. The file is still being served, it can even be googled. And it's been updated. I tend not to respond to their donation solicitations when I get them.

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。