White Hat
Noun · Hacker Culture
Definitions
A security researcher or hacker who works with authorization or with an explicitly defensive intent, such as improving systems through testing, audits, or responsible disclosure. The term contrasts with black hat and gray hat categories.
In plain English: A hacker or security expert working to improve security rather than exploit it maliciously.
Example: "The report came from a white hat researcher through the bug bounty program."