The term "grey hat", "greyhat" or "gray hat" (gureihato) refers to a computer hacker or computer security expert who may sometimes violate laws or typical ethical standards, but does not have the malicious intent typical of a black hat hacker.

Should security teams clean up the malware and move on or format the hard drives to start over with a clean system? In this expert guide, security pros weigh in on how antimalware protects the enterprise.

Gray Hat SEO is an SEO practice that's riskier than White Hat SEO, but one that may or may not result in your site being banned from search engines and their affiliate sites. Generally, Gray Hat SEO practices belong in neither the Black Hat nor White Hat category because the terms of service regarding the issue are unclear.

The term "grey hat", "greyhat" or "gray hat" (gureihato) refers to a laptop hacker or laptop security knowledgeable World Health Organization could typically violate laws or typical moral standards, however doesn't have the malicious intent typical of a black hat hacker.