Preventing Attacks

XSS is short for Cross-Site Scripting, but you probably might ask why the short term is not CSS instead. That's because CSS is already used for Cascade Style Sheets, a pre-existing language for defining styles for web pages, so using XSS will prevent confusion.

No matter how diligent you are at preventing vulnerabilities and securing your environment, it's impossible to be completely secure on the Internet. What you can do is plan for how to limit the damage that people can do when they manage to compromise some part of your system. This line of thinking is called "Defense in depth" -- you can't just apply security updates and call it good.

Backups are the safety net and an absolute requirement. But the next most important part is doing what you can to stay out of trouble. We've all become accustomed to security updates on our computers. Today every operating system has an update system, and a huge number of attacks are on vulnerabilities that have fixes released but people have neglected to apply.

How would losing your web site affect your business?
That might seem like a silly question, but a surprising number of small organizations don't think it can happen to them. Think again -- web sites get lost all the time, through a variety of means. The server hosting your site might have a hardware failure. Your site might get hacked. Your web developer might accidentally delete something critical. Your host might go out of business, leaving you stranded. If you're in the tech world, you hear about these incidents all the time.