Computer Network Security
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Transcript of Computer Network Security
Computer Network SecurityFebruary 15-16, 2013, Kompot, Cambodia
About Me:
Name: Leangchea Gouv Company: WiCam co,.ltd Position: Network Engineering E-mail: [email protected] Mobile: 088 875 2222
Content:
Computer Security Computer Security risks to home users
What is at risk? Intentional misuse of your computer Accidents and other risks
Action home users can take to protect their computer systems
Question?
Computer Security
What is computer security?
Computer Security
What is computer security?Computer security is the process of preventing and
detecting
unauthorized use of your computer.
Computer Security
Why should I care about computer security?
Computer Security
Why should I care about computer security?We use computers for everything from banking and
investing to
shopping and communicating with others through email or
chat programs. Although you may not consider your
communications "top secret," you probably do not want
strangers reading your email, using your computer to attack
other systems, sending forged email from your computer,
or examining personal information stored on your computer
(such as financial statements).
Computer Security
Who would want to break into my computer?
Computer Security
Who would want to break into my computer? Hackers Attackers Crackers etc..
Computer security risks to users
What is at risks?Information security is concerned with three main area:
Confidentiality: information should be available only to those who rightfully to access it.
Integrity: information should be modified by those who are authorized
Availability: information should be accessible to those who need it
Computer security risks to users Intentional misuse of your computer
The most common methods used by intruders to gain control of computers are described below:
Trojan horse programs Back door and remote administration programs Denial of service Being an intermediary for another attack Unprotected windows shares Mobile code Cross-site scripting Email spoofing Email-borne viruses Hidden file extensions Chat clients Packet sniffing
Computer security risks to users
Accidents and other risks1. Disk Failure
2. Power failure and surges
3. Physical theft
Actions users can take to protect their computerThe recommends the following practices to users:
1. Consult your system support
2. Secure your Username & Password
3. Use virus protection software
4. Use a firewall
5. Don’t open unknown email attachments
6. Don’t run programs of unknown
7. Disable hidden filename extensions
8. Keep all application (including your operating system) patched
9. Turn off your computer or disconnect from the network when not use
10. Disable scripting features in email programs
11. Disable Java, Javascript, and activeX if possible
12. Make regular backups of critical data
13. Make a external disk in case your computer is damaged or compromised
Question ?