An ethical hacker is a cybersecurity professional who uses hacking techniques and tools to identify vulnerabilities and weaknesses in computer systems and networks, with the goal of improving their security and preventing unauthorized access.

A cyber security specialist is a professional who is responsible for protecting computer systems and networks from unauthorized access, theft, damage or other malicious activities. They develop and implement security measures to safeguard the integrity, confidentiality and availability of data and systems.

A vulnerability assessment is a process of identifying and evaluating weaknesses in a system, network, application, or other IT infrastructure that could potentially be exploited by attackers.

There are several types of vulnerability assessments, including network vulnerability assessments, web application vulnerability assessments, and host-based vulnerability assessments. Each type of assessment focuses on a different aspect of an organization’s IT infrastructure and uses different tools and techniques to identify vulnerabilities.

A vulnerability assessment is a process of identifying and classifying vulnerabilities in a system, whereas a penetration test is an attempt to exploit those vulnerabilities to determine their impact on the system.