--- title: What is a Grey Hat Hacker? | Jericho's Cybersecurity Glossary description: A grey hat hacker is a hacker who operates between ethical (white hat) and unethical (black hat) practices. Read on for the meaning of grey hat hacking. image: //www.jerichosecurity.com/hubfs/assets/images/jericho-featured-image.jpg --- [![Jericho Security logo](https://www.jerichosecurity.com/hubfs/assets/images/Jericho-Security.svg)](https://www.jerichosecurity.com/) [![Jericho Security logo](https://www.jerichosecurity.com/hubfs/assets/images/Jericho-Security.svg)](https://www.jerichosecurity.com/) - Why Jericho Why choose Jericho Security? See what sets Jericho Security apart from the rest. [About Us Our Mission](https://www.jerichosecurity.com/about) [Customers What customers say](https://www.jerichosecurity.com/customers) - Plans - Plans - [Lite](https://www.jerichosecurity.com/lite) - [Plus](https://www.jerichosecurity.com/plus) - [Premium](https://www.jerichosecurity.com/premium) - [Free Trial](https://www.jerichosecurity.com/7-day-free-trial) - Solutions See how Jericho Security can help keep your team safe. We equip individuals with the knowledge and skills needed to identify, prevent, and respond to cyber threats. Platform [Cybersecurity Dashboard Manage Your Security](https://www.jerichosecurity.com/platform/cybersecurity-dashboard) [Phishing Simulator Train Your Employees](https://www.jerichosecurity.com/platform/phishing-simulator) [Performance Analytics Gain Key Insights](https://www.jerichosecurity.com/platform/employee-performance-analytics) [Customized Training Tailored to Your Organization](https://www.jerichosecurity.com/platform/training-content) Solutions [Cybersecurity Awareness Training Train Your Team](https://www.jerichosecurity.com/solutions/cybersecurity-awareness-training) [Anti-Phishing Training Protect Your Business](https://www.jerichosecurity.com/solutions/anti-phishing-training) [Enterprise Cybersecurity Training Defend Against Threats](https://www.jerichosecurity.com/solutions/enterprise-cybersecurity-training) [SMB Cybersecurity Training Empower Your Team](https://www.jerichosecurity.com/solutions/smb-cybersecurity-training) Industries [Retail Keep retail threats away](https://www.jerichosecurity.com/industries/retail) [E-Commerce Protect your E-Com Business](https://www.jerichosecurity.com/industries/e-commerce) [Technology Prevent sensitive breaches](https://www.jerichosecurity.com/industries/technology) [Financial Services Safeguard your assets](https://www.jerichosecurity.com/industries/financial-services) [Healthcare Secure sensitive information](https://www.jerichosecurity.com/industries/healthcare) [Manufacturing Keep your operation running](https://www.jerichosecurity.com/industries/manufacturing) [Energy Prevent the next breach](https://www.jerichosecurity.com/industries/energy) [Federal Government Prevent largescale attacks](https://www.jerichosecurity.com/industries/federal-government) [State & Local Government Protect local officials](https://www.jerichosecurity.com/industries/state-local-government) [Higher Education Keep staff & students safe](https://www.jerichosecurity.com/industries/higher-education) - Resources Jericho Security resources hub. Find everything you need to defend against emerging Generative AI threats. [News Latest news headlines](https://www.jerichosecurity.com/resources/tag/news) [Literature White papers & solution briefs](https://www.jerichosecurity.com/resources/tag/white-papers-solution-briefs) [Case Studies Jericho success stories](https://www.jerichosecurity.com/resources/tag/case-study) [Events Upcoming security events](https://www.jerichosecurity.com/resources/tag/events) [Webinars Upcoming & On-Demand](https://www.jerichosecurity.com/resources/tag/webinars) [Podcast Leading CISO Discussions](https://www.jerichosecurity.com/ciso-diaries) [Community Spotlight To recognize and appreciate](https://www.jerichosecurity.com/resources/tag/community-spotlight) [Cybersecurity Glossary Cyber-Related Definitions](https://www.jerichosecurity.com/glossary) [Support Advice and Answers](https://support.jerichosecurity.com/) [View All Resources](https://www.jerichosecurity.com/resources) - [Blog](https://www.jerichosecurity.com/blog) - [Partners](https://www.jerichosecurity.com/partner) - [Sign In](https://app.jerichosecurity.com/users/sign_in) - [Free Trial](https://www.jerichosecurity.com/7-day-free-trial) 1. [← back to glossary](https://www.jerichosecurity.com/glossary) # Grey Hat Hacker ## *Grey Hat Hacker Definition:* A grey hat hacker is a hacker who operates between ethical (white hat) and unethical (black hat) practices. Grey hat hackers may probe systems for vulnerabilities without malicious intent but without the owner's permission, often revealing their findings publicly. ## *Grey Hat Hacking Use Cases:* - Used by individuals who exploit system vulnerabilities without malicious intent, typically revealing the flaw to the organization afterward. - Employed in bug bounty programs, though grey hat activities may violate terms of service agreements. ## *Related Terms:* - White Hat Hacker - Black Hat Hacker - [Ethical Hacking](https://www.jerichosecurity.com/glossary/ethical-hacking) - Vulnerability Disclosure ## *Questions and Answers:* - **What distinguishes a grey hat hacker from a white or black hat hacker?**Grey hat hackers operate without explicit permission. However grey hats often aim to improve security by revealing vulnerabilities, whereas white hats have permission, and black hats act maliciously. - **Is grey hat hacking illegal?**It can be said that grey hat hackers are not doing anything illegal, but that is not entirely correct. Grey hat hacking can be illegal because it involves accessing systems without permission, even if the intent is not malicious. - **How do organizations respond to grey hat hackers?**Some organizations may appreciate the grey hat hacker's disclosure and fix the vulnerability, while others may take legal action due to the unauthorized access. 1. [← back to glossary](https://www.jerichosecurity.com/glossary) [Sidebar](https://www.jerichosecurity.com/glossary/grey-hat-hacker#blog-sidebar) Platform - [Cybersecurity Dashboard](https://www.jerichosecurity.com/platform/cybersecurity-dashboard) - [Phishing Simulator](https://www.jerichosecurity.com/platform/phishing-simulator) - [Performance Analytics](https://www.jerichosecurity.com/platform/employee-performance-analytics) - [Customized Training](https://www.jerichosecurity.com/platform/training-content) Solutions - [Anti-Phishing Training](https://www.jerichosecurity.com/solutions/anti-phishing-training) - [SMB Cybersecurity Training](https://www.jerichosecurity.com/solutions/smb-cybersecurity-training) - [Enterprise Cybersecurity Training](https://www.jerichosecurity.com/solutions/enterprise-cybersecurity-training) - [Cybersecurity Awareness Training](https://www.jerichosecurity.com/solutions/cybersecurity-awareness-training) Industries - [Retail](https://www.jerichosecurity.com/industries/retail) - [E-Commerce](https://www.jerichosecurity.com/industries/e-commerce) - [Technology](https://www.jerichosecurity.com/industries/technology) - [Financial Services](https://www.jerichosecurity.com/industries/financial-services) - [Healthcare](https://www.jerichosecurity.com/industries/healthcare) - [Manufacturing](https://www.jerichosecurity.com/industries/manufacturing) - [Energy](https://www.jerichosecurity.com/industries/energy) - [Federal Government](https://www.jerichosecurity.com/industries/federal-government) - [State & Local Government](https://www.jerichosecurity.com/industries/state-local-government) - [Higher Education](https://www.jerichosecurity.com/industries/higher-education) Resources - [Cybersecurity Glossary](https://www.jerichosecurity.com/glossary) - [Support](https://support.jerichosecurity.com/) - [Blog](https://www.jerichosecurity.com/blog) - [News](https://www.jerichosecurity.com/resources/tag/news) - [Literature](https://www.jerichosecurity.com/resources/tag/white-papers-solution-briefs) - [Case Studies](https://www.jerichosecurity.com/resources/tag/case-study) - [Events](https://www.jerichosecurity.com/resources/tag/events) - [Webinars](https://www.jerichosecurity.com/resources/tag/webinars) - [Community Spotlight](https://www.jerichosecurity.com/resources/tag/community-spotlight) Company - [About Us](https://www.jerichosecurity.com/about) - [Customers](https://www.jerichosecurity.com/customers) - [Partners](https://www.jerichosecurity.com/partner) - [Careers](https://jericho-security.breezy.hr/) - [Sign In](https://app.jerichosecurity.com/users/sign_in) - [Get a Demo](https://www.jerichosecurity.com/demo) - [Privacy Policy](https://www.jerichosecurity.com/privacy-policy) - [Terms of Service](https://www.jerichosecurity.com/terms-of-service) [![Jericho Security footer logo](https://www.jerichosecurity.com/hubfs/assets/images/bootstrap/jericho-logo.svg)](https://www.jerichosecurity.com/) AI-Powered Cyber Security Training for Employees. ![AICPA SOC](https://www.jerichosecurity.com/hs-fs/hubfs/assets/images/bootstrap/AICPA-SOC-Logo.png?width=54&height=54&name=AICPA-SOC-Logo.png) ![SOC 2 TYPE 1](https://www.jerichosecurity.com/hs-fs/hubfs/assets/images/bootstrap/SOC-2-TYPE-1.png?width=54&height=54&name=SOC-2-TYPE-1.png) ![SOC 2 TYPE 2](https://www.jerichosecurity.com/hs-fs/hubfs/assets/images/bootstrap/SOC-2-TYPE-2.png?width=54&height=54&name=SOC-2-TYPE-2.png) Toggle theme - Light - Dark - Auto Copyright © Jericho Security, Inc. ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Jericho Security Team", "url" : "http://www.jerichosecurity.com/glossary/author/jericho-security-team" }, "dateModified" : "2025-02-07T09:35:54.894Z", "datePublished" : "2024-09-28T17:15:34.000Z", "headline" : "What is a Grey Hat Hacker? | Jericho's Cybersecurity Glossary", "image" : [ "//www.jerichosecurity.com/hubfs/assets/images/jericho-featured-image.jpg" ], "mainEntityOfPage" : { "@id" : "http://www.jerichosecurity.com/glossary/grey-hat-hacker", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "//www.jerichosecurity.com/hubfs/assets/images/Jericho-Security.svg" }, "name" : "Jericho Security" } } ```