A Hacker is a person who exploits computer systems or networks. Hackers can have different motivations and skill levels.
Types of Hackers:
- Black hat hackers: Malicious actors who break into systems illegally
- White hat hackers: Ethical hackers who test security with permission
- Grey hat hackers: Operate in a grey area between legal and illegal
Common Hacker Activities:
- Exploiting software vulnerabilities
- Developing malware
- Social engineering attacks
- Network intrusion
- Password cracking
Hackers Use Various Tools and Techniques:
- Penetration testing software
- Packet sniffers
- Keyloggers
- Exploit kits
- Cryptography tools
While “hacker” often has a negative connotation, not all hackers are malicious. Many work in cybersecurity to improve system defences.