Black Hats, White Hats And Grey Hat Hackers

Black Hat Hackers develop malware, intrusion techniques and tools for evil purposes and have an ulterior motive of profiting from it. Spy agencies, criminal groups and enemies of establishments tend to pay them for such exploits.

White Hat Hackers, or Ethical Hackers maybe good guys or security researchers who undertake penetration testing and security audits, while operating within the law. They report vulnerabilities to help fix the loopholes.

Grey Hat Hackers may expose vulnerabilities to fraudulent actors and may report vulnerabilities anonymously.