Which of the following attacks causes software to fail and prevents the intended users from accessing software?

'Enabling attack' is not a standard, recognized term for an attack type in the field of cybersecurity.

A reconnaissance attack focuses on gathering information about a target to plan future attacks, but it does not directly cause software failure or prevent user access.

A sabotage attack is an intentional act designed to damage, disrupt, or destroy information systems, data, or services, directly causing software to fail and preventing its intended users from accessing it.

A disclosure attack, also known as an information disclosure attack, primarily aims to reveal sensitive or confidential information, rather than causing system failure or denial of service.