introduction to cybersecurity

What is Cybersecurity?

The connected electronic information network has become an integral part of our daily lives. All types of organizations, such as medical, financial, and education institutions, use this network to operate effectively. They utilize the network by collecting, processing, storing, and sharing vast amounts of digital information. As more digital information is gathered and shared, the protection of this information is becoming even more vital to our national security and economic stability.

Cybersecurity is the ongoing effort to protect these networked systems and all of the data from unauthorized use or harm. On a personal level, you need to safeguard your identity, your data, and your computing devices. At the corporate level, it is everyone’s responsibility to protect the organization’s reputation, data, and customers. At the state level, national security, and the safety and well-being of the citizens are at stake.

1. Open your text editor so that you’re looking at a blank file. (Note: Some editors give you the option of clicking through a welcome tutorial before you see this blank file.)
2. Type the following code (exactly as shown) into the blank file:
   html well, why <b>wouldn’t</b> I learn to code?
3. Save your code as an HTML file by navigating to the menu bar, selecting File → Save As…, and giving the file a name like my-first-code.html. Note the location on your computer where you’re saving this file. Then, hit the Save button.

Viewing the Rendered Web Page

It’s now time to view the rendered web page in a browser like Chrome, Safari, or Firefox.

There are a couple of ways you can do this:

• You can find the HTML file on your computer and double-click on it to open it. (On Mac, you can use the Finder to reach the file location, and on Windows, you can use My Computer.) Most often, your computer will be set up to open the HTML file in your default web browser. If, however, this doesn’t happen, you can simply right-click on the file, and choose to open it in a browser by selecting, for example, Open With → Google Chrome.
• Alternatively, you can open up a web browser and then open your HTML file directly through the browser's interface. In Chrome, for instance, this would involve navigating to the menu bar and selecting File → Open File…. You’d then select the HTML file that you saved on your computer and click Open to view the rendered web page in your browser window.

Note: If you make changes to your HTML code using your text editor, those changes will only be reflected in your browser’s rendered web page if you do two things:

1. You must first save your changes to the HTML file (in your text editor, File → Save), and
2. You must then refresh the web page to render the modified HTML file.