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Dr. Keen
Cyber Defender & Diagnostics Lab Technician
Dr. Keen is in charge of Diagnostics and has the equipment and knowledge to fix most computer related problems.
Abandoned by her computer hacker parents when she was a child, Dr. Keen focuses on helping others overcome the attacks of cyber criminals just like her parents.
You can't direct the wind but you can adjust the sails
- Anonymous
French fries
Interests:Inventing, watercolor, playing fetch with Scout
Scout
Cyber Defender & Dr. Keen's robot assistant
Scout is in charge of keeping the Cyber Defense Force's security measures up-to-date. His computer brain carries fixes to most security and computer problems that can be administered at any time.
Scout is always eager to help make Cyberspace a safe and fun place.
Memory chips
Interests:Fixing computers, making antidotes for malware, playing fetch
April 20 2009
Cyber Defense Threats: Key loggers
Key loggers are software that records a user's keystrokes, the letters and characters they input from the keyboard. The technique was first used when computers only used text input. Many computers nowadays have GUIs, so modern logger software must also capture screenshots and mouse movements.
Key loggers can be used for parental controls, in the workplace to make sure employees are doing what they are supposed to, and during testing to see what causes errors in a program. However, some malware also uses key loggers to capture people's passwords and personal information as they type them in.
Anti-virus software can catch and take care of many types of malware key loggers, but you can also try pasting information into forms rather than typing it to better protect your information. Refer to Cyber Defense Tip: Defending your Computer from Malware for more tips on keeping malware key loggers off of your computer.
posted by Scout
topic: Cyber Defense Threats
April 6 2009
How Computers Work: What is an Operating System?
An operating system, or OS for short, is a piece of software that allows you to interact with the computer and run the programs on it. It is like the computer's spine, connecting the brain (CPU) to the rest of the body (the programs and devices). The OS manages the computer's software, hardware, and even the peripherals, and it keeps things running smoothly even if there are several programs and devices running at the same time. It also serves as your computer's first line of defense by preventing unauthorized users from accessing the computer.
Not all computers have operating systems. Very simple computers, like a microwave or a calculator, have no need for an operating system because they do the same simple tasks in the same way, every time. All desktop computers have operating systems though because they need to perform a wide variety of tasks and process many different inputs. The most common operating systems for desktop computers are Windows, Macintosh, and UNIX.
Many operating systems have a Graphical User Interface (GUI) that allows users to see files and manipulate them with a mouse or stylus. Before GUIs, most operating systems displayed the computer's data as lines of text and files were manipulated by entering complicated command lines.
posted by Dr. Keen
topic: How Computers Work
April 1 2009
Well done, Cadets!
I was so impressed with you during the fake attack, Cadets! If it had been real, I'm sure those Cyber Villains would have been in for a surprise. Congratulations!
Now continue to keep up the good work, and don't forget to attend Friday's seminar.