CBSE Class 8 Computer Science Introduction To Computer Security Notes

Download CBSE Class 8 Computer Science Introduction To Computer Security Notes in PDF format. All Revision notes for Class 8 Computer Science have been designed as per the latest syllabus and updated chapters given in your textbook for Computer Science in Class 8. Our teachers have designed these concept notes for the benefit of Class 8 students. You should use these chapter wise notes for revision on daily basis. These study notes can also be used for learning each chapter and its important and difficult topics or revision just before your exams to help you get better scores in upcoming examinations, You can also use Printable notes for Class 8 Computer Science for faster revision of difficult topics and get higher rank. After reading these notes also refer to MCQ questions for Class 8 Computer Science given on studiestoday

Revision Notes for Class 8 Computer Science Introduction To Computer Security

Class 8 Computer Science students should refer to the following concepts and notes for Introduction To Computer Security in Class 8. These exam notes for Class 8 Computer Science will be very useful for upcoming class tests and examinations and help you to score good marks

Introduction To Computer Security Notes Class 8 Computer Science

.Introduction to Computer Security

What is Computer Security?

Computer Security is the protection of computing systems and the data that they store or access. It is the body of technologies, processes and practices designed to protect networks, computers, programs and data from attack, damage or unauthorized access.

Elements of cyber security include:

· Application security

· Information security

· Network security

· Disaster recovery

· End-user education.

· Protecting personal and sensitive information

A hacked computer can be used to...

a. Record keystrokes and steal passwords.

b. Send spam and phishing emails.

c. Harvest and sell email addresses and passwords.

d. Access restricted or personal information on your computer or other systems that you have access to.

e. Illegally distribute music, movies and software.

f. Distribute child pornography.

g. Infect other systems.

h. Hide programs that launch attacks on other computers.

i. Generate large volumes of traffic, slowing down the entire system.

Many cyber security threats are largely avoidable.

Some key steps that everyone can take include:

· Use good, cryptic passwords that can't be easily guessed - and keep your passwords secret

· Make sure your computer's operating system and applications are protected with all necessary security "patches" and updates

· Make sure your computer is protected with up-to-date antivirus and anti-spyware software

· Don't click on unknown or unsolicited links or attachments, and don't download unknown files or programs onto your computer

· Remember that information and passwords sent via standard, unencrypted wireless are especially easy for hackers to intercept

· To help reduce the risk, look for "https" in the URL before you enter any sensitive information or a password. (The "s" stands for "secure".)

What are the consequences for security violations?

• Risk to security and integrity of personal or confidential information

o E.g. identity theft, data corruption or destruction, unavailability of critical information in an emergency, etc.

• Loss of valuable business information

• Loss of employee and public trust, embarrassment, bad publicity, media coverage, news reports

• Costly reporting requirements in the case of a compromise of certain types of personal, financial and health information

• Internal disciplinary action(s) up to and including termination of employment, as well as possible penalties, prosecution and the potential for sanctions / lawsuits

Top 10 List" of Good Computing Practices

General good computing practices and tips that apply to most people who use a computer.

1. Use cryptic passwords that can't be easily guessed, and protect your passwords.

• Don't share your passwords and avoid writing them down.

• Characteristics of good, cryptic passwords:

o Contain a mixture of upper and lower case letters, numbers, and symbols

o At least 8 characters in length (or longer if they're less complex)

o Difficult to guess (e.g. don't include real words or personal information like user name, names of family members, places, pets, birthdays, addresses, hobbies, etc.)

o Easy to remember (so you don't have to write them down)

2. Beware of scams.

• Don't respond to email, instant messages (IM), texts, phone calls, etc., asking you for your password. You should never disclose your password to anyone, even if they say they work for UCSC, ITS, or other campus organizations.

• Malicious links can infect your computer or take you to web pages designed to steal your information. Only click on links from trusted sources. Never click on a mystery link unless you have a way to independently verify that it is safe. This includes tiny URLs.

•  Malicious attachments can infect your computer. Don't open unsolicited or unexpected attachments. If you can't verify an attachment is legitimate, delete it.

• Don't give private information to anyone you don't know or who doesn't have a legitimate need for it -- in person, over the phone, via e-mail, IM, text, Face book, Twitter, etc.

3. Protect information when using the Internet and email.

• Don't log in to web sites or online applications unless the login page is secure. Don't enter personal or sensitive information online unless you are using a trusted, secure web page.

o Look for https (not http) in the URL to indicate that there is a secure connection.

• Be especially careful about what you do over wireless. Information and passwords sent via standard, unencrypted wireless are especially easy for hackers to intercept (most public access wireless is unencrypted).

o Hint: Set laptops and mobile devices to “ask” before joining networks so you don’t unknowingly connect to insecure wireless networks.

• Don't send restricted data via email. Email is not a secure method of communication.

• Be extremely careful with file sharing software. File sharing opens your computer to the risk of malicious files and attackers. Also, if you share copyrighted files, you risk being disconnected from the campus network, as well as serious legal consequences.

• Use on screen keyboards for typing key information.

CBSE Class 8 Computer Science - Introduction to Computer Security (1)

4. Secure your area before leaving it unatten

• Lock windows and doors, take keys out of drawers and doors, and never share your access code, card or key.

• Be sure to lock up portable equipment and sensitive material before you leave an area unattended.

5. Secure laptop computers and mobile devices at all times: Lock them up or carry them with you at all times.

• In your office or dorm room, at coffee shops, meetings, conferences, etc. - Remember: Phones and laptops get stolen from cars, houses, and offices all the time.

• Make sure it is locked to or in something permanent.

• Laptop lockdown cables are available at the Bay Tree Bookstore and most computer or office supply stores.

6. Shut down, lock, log off, or put your computer and other devices to sleep before leaving them unattended, and make sure they require a secure password to start up or wake-u

• Ctrl+ Alt+Delete or Windows+L on a PC.

• Also set your computer and portable devices to automatically lock when they're not being used.

7. Make sure your computer is protected with anti-virus and all necessary security "patches" and updates, and that you know what you need to do, if anything, to keep them curren

• Shut down or restart your computer at least weekly -- and whenever your programs tell you to in order to install updates.

• Shutting down or restarting your computer regularly helps to make sure software and security updates are properly installed.

• Talk to your computer support person for assistance.

8. Protect Portable and Mobile Devices.

• Don't keep sensitive information or your only copy of critical data, projects, files, etc. on portable or mobile devices (such as laptop computers, data phones, memory sticks, CDs/DVDs/floppy disks, PDAs, etc.) unless they are properly protected. These items are extra vulnerable to theft or loss.

9. Don't install or download unknown or unsolicited programs to your compute

• These can harbor behind-the-scenes computer viruses or open a "back door" giving others access to your computer without your knowledge.

10. Make backup copies of files or data you are not willing to lose -- and store the copies very securely.


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CBSE Class 8 Computer Science Introduction To Computer Security Notes

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Notes for Computer Science CBSE Class 8 Introduction To Computer Security

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Introduction To Computer Security Notes for Computer Science CBSE Class 8

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Introduction To Computer Security CBSE Class 8 Computer Science Notes

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Notes for CBSE Computer Science Class 8 Introduction To Computer Security

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