Unauthorized system access refers to the act of gaining entry into a computer system, network, or application without official permission. This access is typically achieved through hacking, exploiting vulnerabilities, or bypassing security controls. Such activities are illegal and can lead to data breaches, theft of sensitive information, or disruption of services. Organizations implement various security measures, such as authentication protocols, firewalls, and intrusion detection systems, to prevent unauthorized access. Detecting and responding to unauthorized system access is a critical aspect of cybersecurity, as it helps protect confidential data and maintain the integrity and availability of IT resources.