What is grey hat hacking not ethical?

N.I.C.H. Hats were developed & Patented by a “Look Good, Feel Better” volunteer hair Stylist with the American Cancer Society, assuring Maximum comfort & beautiful with style.

http://nich-hats.com/

A Grey-hat hacker, when they discover a vulnerability, instead of telling the vendor how the exploit works, he or she may offer to repair it for a small fee. When one successfully gains illegal access to a system or network, he or she may suggest to the system administrator that one of his or her friends be hired to fix the problem; however, this practice has been declining due to the increasing willingness of businesses.

A grey hat hacker is somebody who may damage moral benchmarks or standards, yet without the pernicious aim credited to black hat hackers.The study of Ethical Hacking is very interesting. ECSA an advanced ethical hacking Training certification that complements the Certified Ethical Hacker, CEH certification by exploring the analytical phase of ethical hacking. https://www.mazenetsolution.com/eccouncil-certified-security-analyst-ecsa.aspx