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SMJK CHIO MIN

CLASS 4A & 4TM3

OBJECTIVES CONTENTS

SUMMARY EVALUATION

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OBJECTIVES

At the end of the lesson, students should be able to

Select the appropriate security measures to overcomethe identified computer threats: antivirus, anti-spyware, firewall, data backup, and humanaspects.

Describe the impact of ICT on society.

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3.3 security measures

SecurityMeasures

Anti-virus

Cryptography

HumanAspect

Anti-spyware

DataBackup

Firewall

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Anti-virus

Anti-virus is an utility program that we use to protecta computer against viruses by identifying andremoving computer viruses found in the computer

memory, computer storage or incoming e-mails files.

Examples of antivirus are Norton

AVG Kaspersky

Avira

Bitdefender

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Anti-spyware

Anti-spyware is an utility program that we use toprotect the computers from spyware

Spyware is designed secretlyrecord and report anindividuals activities on the internet.

It enters your systems through internet when you opene-mail or download software.

Examples of antispyware program are Spybot Searchand Destroy, Ad-ware and Spyware Blaster.

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Firewall

Firewall is a piece of hardware or software whichfunctions in a networked environment to prevent somecommunications forbidden by security policy.

We use firewall to prevent hacking (unauthorizedaccess is the use of a computer or network withoutpermission).

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Data Backup

Backup is utility program that makes a copy of all filesor selected files that have been saved onto a disk.

Backup Data is to ensure our data can still be used ifthe original is corrupted and prevent our files frommalicious program.

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Cryptography

Cryptographyis a process of transforming plaintextinto ciphertext then back again.

Encryption is a process of converting plaintext intociphertext.

Decryption is the process of converting ciphertextinto plaintext.

We use cryptographyto secure the information andprevent hacking or unauthorized access.

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Cryptography

I love ICTso much

Plaintext

MRNMEREOGOSANOW

Ciphertext I love ICT

so much

Plaintext

DECRYPTION

ENCRYPTION

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Human Aspects

Human Aspects refer to the user and also the intruderof a computer system.

Human aspect security is the hardest aspects to giveprotection to. Lack of achieving a good informationsecurity procedure.

Three ways of security through human aspects are Organization self awareness

Organization user self awareness

Individual user self awareness

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3.4. current and future

development

Impact of ICT in society

Computer helps people to do their work fasterand more efficient by using the softwareapplication that consist of special program for

specific tasks.

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activity

Move in a group of three

Get A4 paperfrom teacher

Discuss in your group about

your invention Draw the draft

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The Racing Game of Knowledge

Continue

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summary There are several appropriate security measures to

overcome the identified computer threats: antivirus,anti-spyware, firewall, data backup, cryptography

and human aspects.

Impact of ICT on society including:

Home and education

Business

Graphics & multimedia

Communication