Talk about a tough way to start a day.

From Twitter Status comes this nuggest of good news:

We are defending against a denial-of-service attack, and will update status again shortly.

Okay, that doesn’t sound good.

What exactly is a Denial-of-Service or DoS Attack? Heck — I’d never heard of it and I’m a geek, passionate about his Social Media. So, I turned to Google and started the research. In a nutshell, it’s bad. REALLY bad. From the files of U.S. Computer Emergency Readiness Team (CERT) comes a definition of what a DoS Attack is all about:

In a denial-of-service (DoS) attack, an attacker attempts to prevent legitimate users from accessing information or services. By targeting your computer and its network connection, or the computers and network of the sites you are trying to use, an attacker may be able to prevent you from accessing email, web sites, online accounts (banking, etc.), or other services that rely on the affected computer.

The most common and obvious type of DoS attack occurs when an attacker “floods” a network with information. When you type a URL for a particular web site into your browser, you are sending a request to that site’s computer server to view the page. The server can only process a certain number of requests at once, so if an attacker overloads the server with requests, it can’t process your request. This is a “denial of service” because you can’t access that site.

So yeah. This is bad.