Cyber Security and Digital Citizenship – Class 9 | Unit 6

Unit 6: Cybersecurity and Digital Citizenship – Class 9 ICT

6.1 Concept of Cybersecurity

Cybersecurity refers to the practice of protecting computer systems, networks, and data from digital attacks. It ensures the confidentiality, integrity, and availability of information. Common threats include viruses, phishing, ransomware, and hacking.

6.2 Concept of Cybercrime

Cybercrime encompasses illegal activities conducted using computers or the internet. Examples include hacking, identity theft, online scams, cyberbullying, and spreading malware.

6.3 Prevention Methods for Cybercrime

• Use strong passwords and change them regularly.
• Install antivirus and firewall protection.
• Avoid clicking on suspicious links or attachments.
• Enable two-factor authentication.
• Keep software and systems updated.

6.4 Safe Web Browsing Techniques

• Use secure websites (HTTPS).
• Check for SSL certificates.
• Do not download from unknown sources.
• Clear browser history and cookies regularly.

6.5 Concept of Digital Citizen

A digital citizen is someone who uses the internet responsibly. This includes using technology ethically, being aware of digital laws, and participating positively in online activities.

6.6 Concept of Netiquette and Online Behaviors

Netiquette refers to the proper and respectful behavior expected while communicating online. Good netiquette includes not spamming, avoiding offensive language, and respecting others’ privacy and opinions.

6.7 Concept of Digital Footprint and Online Privacy

A digital footprint is the trail of data one leaves online. It includes browsing history, social media activity, and uploaded files. To protect privacy:

• Limit personal information shared online.
• Use privacy settings on social media.
• Think before posting or sharing online.

Practical Tasks

• Antivirus: Install and scan your device with antivirus software to detect threats.
• Firewall: Enable Windows Defender Firewall or install third-party firewalls to protect your network.
• Safe Browsing: Use browsers with security features, enable pop-up blockers, and only visit trusted sites.
• Strong Passwords: Create strong passwords using uppercase, lowercase, numbers, and symbols. Example: P@ssw0rd2025!

Summary

Cybersecurity and digital citizenship are essential in today’s digital world. Students should be aware of online threats and exercise responsible behavior on the internet. Being a good digital citizen ensures safety, respect, and privacy for all users.