Ethical Hacking Essentials Practice Test

What is a potential risk of not changing default passwords on devices in a network?

1. Increased performance

2. Improved system reliability

3. Enhanced security protocols

4. Increased vulnerability to attacks

The correct answer is: Increased vulnerability to attacks

Not changing default passwords on devices in a network significantly increases vulnerability to attacks. Many devices come equipped with factory-set usernames and passwords that are often publicly available or easily guessable. Cyber attackers frequently exploit these default credentials to gain unauthorized access to systems. When default passwords remain unchanged, it allows intruders to bypass security measures effortlessly, leading to potential data breaches, unauthorized data access, and control over network devices. In contrast, the other options do not accurately represent the implications of retaining default passwords. Increased performance and improved system reliability are unrelated to password security practices, and enhanced security protocols involve proactive measures that are negated by the presence of unchanged default passwords. Thus, failing to change these passwords not only undermines the integrity of the network but also poses a threat to the entire system's security.