What denotes a cyberattack on an organization's infrastructure?

A cyberattack on an organization's infrastructure is characterized by an attempt to disrupt IT systems. This can involve a variety of tactics, such as attempting to access, damage, or disable critical digital resources and services. By aiming to disrupt the functionalities of IT systems, attackers may seek to steal sensitive data, compromise system integrity, or hinder operational capabilities.

In contrast, the options related to updating software, conducting cybersecurity training sessions, and monitoring network performance are all proactive measures that organizations take to protect their infrastructure. These activities enhance security and improve resilience against potential threats, rather than constitute an attack themselves. Thus, option B accurately reflects the nature of a cyberattack, highlighting the intent to cause disruption rather than mere maintenance or improvement of technological systems.