Computer Security 1
Keeping your computer safe
Computer Security 1
Computer Security 1 includes two lessons:
 Lesson 1: An overview of computer security and privacy
 Lesson 2: Protecting your computer and your data
Lesson 1
Objectives
After completing this lesson, you will be able to:
 Explain what the terms security and privacy mean as
they apply to computing.
 Identify the various threats prevalent in the world of
computers and the corresponding solutions.
Definitions
 Computer threat: Any factor that can damage your
computer or the data on it.
 floods and hurricanes
 accidental or intentional loss and tampering
 Computer security: Deals with the measures that you can
take to avoid such damage to the computer and its data.
 Installing computers in secure locations
 Backing up data
 Data Storage in Safe Locations
Definitions
 Computer privacy means that your data, such as
personal files and e-mail messages, is not accessible by
anyone without your permission.
 Computer privacy deals with the measures that you can
take to restrict access to your data.
Natural Threats
Categories
 Natural Disasters
 Fire
 Extreme Hot or Cold
 Voltage Problems
Solutions
 Backing up Data
 Install Computer in
Secure Location
 Controlling Operating
Environment
 Surge Protection
 Uninterruptible Power
Supply
Human Threats






Categories
Hackers
Virtual Theft
Viruses, Worms &
Trojan Horses
Spyware
Internet Scams
Online Predators
Solutions
 Data Storage in Safe
Locations
 Virus and Spyware
Protection
 Firewall
Questions??
Lesson 2
Objectives
 After completing this lesson, you will be able to:
 Identify several common methods for protecting
the operating system, software, and data on
your computer.
 Identify the various means of securing online
and network transactions.
 Identify the common measures for securing email and instant messaging transactions.
Protecting Your Computer
1.
2.
3.
4.
5.
6.
7.
8.
Implement user identification
Set a username and password
Keep passwords secure
Lock your computer
Install protective software
Encrypt data
Back up data
Keep your computer up to date
Protecting Your Computer
Implement user identification
Protecting Your Computer
Set a username
Protecting Your Computer
Set a password (cont.)
Protecting Your Computer
Set a password (cont.)
Protecting Your Computer
Set a password (cont.)
Protecting Your Computer
Set a password (cont.)
Click here after filling
this form
Protecting Your Computer
Lock your computer
Press: Ctrl Alt Delete keys at the same time
Click here to change
your password
Click here to lock
your computer
Install protective software
Antivirus
AVG free
AVAST free
McAfee
Symantec
http://free.avg.com/
http://www.avast.com/eng/avast_4_home.html
Install protective software
AntiSpyware
 Windows Defender free
http://www.microsoft.com/windows/products/winfamily/defender/defa
ult.mspx
 Ad-Aware free
 McAfee
 Symantec
http://www.lavasoft.com/
Install protective software
Firewall
Encrypt data
Right click file
Back up data
Back up data (cont.)
Back up data (cont.)
Back up data (cont.)
Restore data
Restore data
Secure online and network
transactions
1.
2.
3.
4.
5.
6.
7.
8.
9.
Use strong passwords
Protect against hacking and spyware
Clear history and cache periodically
Delete cookies periodically
Avoid sharing personal information
Make online transactions on secure sites
Configure security components
Disable active content
Use security help from your ISP
Ensure e-mail and instant
messaging security
1.
2.
3.
4.
5.
6.
Avoid opening e-mail with attachments
Do not respond to junk mail
Do not respond to unsolicited commercial mail
Protect yourself from phishing
Chat with known people only
Do not open attachments received over instant
messenger
Questions??