Terminologies

Ethical hackers

Employed by companies also known as white hat to perform penetration tests or computer and network expert who attacks a security system on behalf of its owners, seeking vulnerabilities that a malicious hacker could exploit.

Penetration test or Ethical hacking

Legal attempt to break into a company’s network to find its weakest link , also known as ethical
hacking,intrusion testing, and red teaming.Tester only reports findings, does not solve problems i-e but report problems instead of taking advantage of them

Security test

More than an attempt to break in; also includes analyzing company’s security policy and procedures Tester offers solutions to secure or protect the network..