[Closed] Difference between cyber security, information security and pen testing

Information security differs from cybersecurity in that Information security aims to keep data in any form secure, whereas cybersecurity secures only digital data. Cybersecurity, works as subset of information security.
Penetration testing also called pen testing is the practice of testing a computer system, network or Web application to find vulnerabilities that an attacker could exploit.

Cyber Security is defined as the ability to protect or defend the users from cyber-attacks.

Whereas, Information Security is the protection of information from unauthorized access, use, disclosure, disruption, modification, or destruction in order to provide confidentiality, integrity, and availability

Information security is the practice of defending information from unauthorized access. It is a general term that can be used regardless of the form the data may take (e.g. electronic, physical).

Cybersecurity is all about protecting data that is found in electronic form. Part of that is identifying what the critical data is, where it resides, and the technology you have to implement in order to protect it.

Penetration testing helps you determine how to best mitigate and protect your vital business data from future cybersecurity attacks.

Information security differs from cybersecurity in that InfoSec aims to keep data in any form secure, whereas cybersecurity protects only digital data.
Cybersecurity is a subset of information security, is the practice of defending your organization’s networks, computers and data from unauthorized digital access
The main objective of penetration testing is to determine security weaknesses. A pen test can also be used to test an organization's security policy compliance, its employees' security awareness and the organization's ability to identify and respond to security incidents.