What consequence can result from a successful DoS attack?

The consequence that can result from a successful Denial of Service (DoS) attack is the crashing of the targeted network services. A DoS attack aims to make a network resource unavailable to its intended users by overwhelming it with a flood of illegitimate requests or by exploiting vulnerabilities in the service. This overwhelms the system's capacity, leading to disruption of service, which can manifest as system crashes, downtime, or a complete loss of functionality for legitimate users. Consequently, the targeted services become inaccessible, resulting in frustration for users and potential financial losses for businesses.

In contrast, increased network security, improved network performance, and unauthorized access to sensitive data are not outcomes typically associated with a DoS attack. While the attack may expose vulnerabilities, it primarily disrupts service rather than enhancing security or performance.