What kind of actions can lead to a touch being disqualified?

A touch can be disqualified due to non-compliance with safety and engagement rules during the attack because these rules are essential for the safety of the fencers and for ensuring fair play. When fencers engage in an attack that breaches these established rules—such as actions that involve unsafe movements, leading to potential injury, or failing to properly engage the opponent—this undermines the integrity of the match. In a fencing bout, it is critical for both competitors to adhere to the guidelines that govern engagement, as well as to perform attacks in a controlled manner that prioritizes safety.

Other actions listed, while they may affect the match outcome or rules of the competition, do not directly correlate with the validity of a scoring touch under the circumstances described. Exceeding the time limit pertains more to match management rather than the specifics of how a touch is scored. Failing to wear proper gear relates to compliance with safety protocols but does not directly disqualify a touch once it is scored. Not scoring during the match simply indicates a lack of points but does not disqualify any touches made.