Malicious hackers are individuals who use their technical skills to exploit computer systems and networks for harmful purposes. They may steal sensitive information, disrupt services, or damage data. Their actions can lead to significant financial losses and compromise the security of organizations and individuals. These hackers often employ various techniques, such as phishing, malware, and ransomware, to achieve their goals. Unlike ethical hackers, who aim to protect systems, malicious hackers operate outside the law and can face severe legal consequences if caught. Their activities pose a constant threat to cybersecurity worldwide.