There are different types of hackers - white hat hackers test security systems for vulnerabilities but do not have malicious intent, while black hat or cracker hackers break into systems to steal data or cause harm. Common hacking attacks mentioned include phishing, brute force attacks, cookie stealing, and email hacking by exploiting vulnerabilities or creating viruses and worms. An anti-virus program is created to detect and remove viruses from a system. A worm is a self-replicating virus that spreads to other computers without user intervention.

2. HACKING
 The person who stole your purse are called “___________”.
 Some one exploits vulnerabilities on your computer and gain all your personal data.

4. TYPES OF HACKERS:
White hat:
Also called as ethical hackers.
They do with non-malicious intention.
Their goal is to strengthen the defenses
Black hat:
known as offensive hackers or Crackers.
they do with malicious intention.

5. TYPES OF ATTACKS:
 Phishing attack
 Brute force attack
 Cookie steal attack
 Web email hack
 Creating worms and viruses
 Vulnerability scanner

10. VIRUS:-
Program written by someone to hack systems.
What is anti-virus?
Who creates it?
WORM:
Self replicating virus.