In cybersecurity, 'human' refers to the individual who interacts with digital systems, often serving as both a user and a decision-maker. Humans play a crucial role in processes like Human-in-the-Loop (HITL), where they review, validate, or approve actions suggested by automated systems such as artificial intelligence. This involvement helps ensure safety, ethical standards, and oversight, especially in sensitive or high-stakes environments. Human participation is essential for catching errors, providing context, and making nuanced judgments that machines might miss. However, humans can also be a source of vulnerabilities, such as through social engineering attacks or accidental errors.