Definition: A highjacker is a type of hacker who actively tries to gain unauthorized access to data or systems, often using malicious software or techniques. They are known for their ability to disrupt critical infrastructure and cause significant damage to businesses and governments worldwide. In the context of cybersecurity, a highjacker can be defined as an individual who has successfully gained unauthorized access to computer systems and networks through various means, including exploiting vulnerabilities in software and hardware, stealing data, or installing malicious software. They are often involved