Which of the following is an example of a cybersecurity flaw in a system?

Default passwords represent a significant cybersecurity flaw because they provide an easily exploitable vulnerability in a system. Many devices and software applications come configured with factory-set passwords that are often publicly known or can be easily discovered. If these default passwords are not changed by users or administrators, unauthorized individuals can gain access to critical systems without any effort. This makes it easier for attackers to compromise security, steal sensitive information, or cause operational disruptions.

In contrast, regular software updates, strong firewall configurations, and data encryption are best practices aimed at enhancing security. Regular software updates fix known vulnerabilities, strong firewall configurations help in controlling incoming and outgoing traffic, and data encryption safeguards information by making it unreadable to unauthorized users. Therefore, the existence of default passwords stands out as a clear example of a cybersecurity flaw that undermines system protection and integrity.