In this scenario, the part of the CIA triad that has been broken is availability. The CIA triad stands for Confidentiality, Integrity, and Availability, which are key principles in information security. Availability refers to ensuring that information and resources are accessible to authorized users when needed.
In this case, the admissions website crashing prevented Cynthia from submitting her college application on time. The loss of access to the website means that the application process was not available to her, demonstrating a failure in the availability aspect of the CIA triad. This disruption hindered her ability to complete a crucial task within a specified timeframe, highlighting the importance of maintaining system availability for users.