Introduction
In this lesson, students will learn about Hackers and Crackers Class 7, the importance of Cyber Law, and the concept of Backup and Restore in computer security. These topics help us understand how to keep our data safe and how computer security works in daily life. Knowing about computer threats and protection methods is an important part of basic digital literacy.
Hackers and Crackers
Hacker:
A hacker is a person who uses computer skills to access computer systems or networks.
Hackers can be ethical (good) or malicious (bad).
Types of Hackers
White Hat Hacker – Works for security and protects systems.
Black Hat Hacker – Breaks security for illegal purposes.
Grey Hat Hacker – Sometimes breaks rules but not always for harm.
Example:
A security expert testing a website for safety is a white hat hacker.
Cracker:
A cracker is a person who breaks into computer systems with the intention of stealing data, damaging files, or causing harm.
Difference Between Hacker and Cracker
| Hacker | Cracker |
| May work for security | Always harmful |
| Protects systems | Damages systems |
| Can be ethical | Illegal activities |
Cyber Law and Its Importance
Cyber Law is the law that deals with crimes and legal issues related to computers, internet, and digital data.
It helps control illegal online activities.
Importance of Cyber Law
- Protects personal information.
- Prevents cyber crimes.
- Punishes online fraud.
- Ensures safe internet usage.
- Protects digital transactions.
Examples of Cyber Crimes
- Hacking
- Online fraud
- Identity theft
- Cyber bullying
Backup and Restore
Backup:
A backup is a copy of important data stored in another location to keep it safe.
Common Backup Devices
- Pen drive
- Hard disk
- Cloud storage
- Memory card
Restore
Restore means bringing back saved data from backup when the original data is lost or damaged.
Importance of Backup
- Protects from data loss
- Helps recover deleted files
- Useful during system crash
- Keeps important records safe
Example:
Saving school project files in Google Drive.
Conclusion
Understanding hackers and crackers, cyber law, and backup and restore helps students stay safe in the digital world. These concepts teach how to protect data, avoid cyber crimes, and use computers responsibly.
Exam-Oriented Questions
Very Short Question
- Who is a hacker?
- Who is a cracker?
- What is cyber law?
Short Question
- Write two differences between hacker and cracker.
- Name any two cyber crimes.
- Why should we keep backup of data?
Long Question
- What is cyber law? Explain its importance.
- Explain backup and restore.