You can see it againUnder pressure people bring back shapes and positions long after the wording has gone.
Picture superiority · Shepard 1967, Standing 1973
The GIAC Exploit Researcher and Advanced Penetration Tester (GXPN) certification validates your ability to pinpoint and mitigate significant security flaws in systems and networks. It is designed for penetration testers and security professionals who conduct advanced attacks by modeling attacker behavior. Earning GXPN proves you can demonstrate and mitigate business risk with expert-level exploitation knowledge.
Content last reviewed 30 July 2026 · Up to date
What this certification covers, who it is written for, and what the exam itself looks like on the day.
What it validates, who it is written for, and the experience it assumes.
The GIAC Exploit Researcher and Advanced Penetration Tester (GXPN) certification validates a practitioner's ability to pinpoint and mitigate significant security flaws in systems and networks. GXPN certification holders are qualified to conduct advanced penetration tests that improve system security by modeling the behavior of attackers, leveraging expert knowledge to demonstrate and mitigate the business risk posed by these threats.
The exam covers network-based and cryptography-based attacks, escalation and client-side attacks, handling restricted environments, fuzzing and source code analysis, shellcode and memory basics, defeating advanced stack protections on Windows and Linux, and Windows and Linux stack overflows. It is a hands-on, performance-based certification delivered through GIAC's CyberLive format, ensuring candidates can apply their skills in realistic lab environments.
This certification is for network penetration testers, systems penetration testers, incident handlers, application developers, and IDS engineers. It is also for security personnel responsible for assessing target networks, systems, and applications to find vulnerabilities. Candidates should have a strong foundation in offensive security concepts and practical experience with penetration testing tools and techniques.
Practical work experience in penetration testing or related security roles is recommended to ensure mastery of the skills necessary for certification. Hands-on experience with network penetration testing and exploitation; Familiarity with Windows and Linux operating systems and their security mechanisms; Understanding of common attack vectors and mitigation techniques; Experience with scripting or programming for offensive operations
Every domain and objective GIAC (SANS) measures, with the weight they carry on the exam.
The official GIAC (SANS) exam outline · checked 30 July 2026 · See the source
Everything GIAC (SANS) publishes about sitting it, and nothing we inferred.
No mandatory prerequisites — this certification has no required predecessor exam or credential.
The path GIAC (SANS) lays out, how the credential is kept, and where to book.
Step-by-step path to GIAC Exploit Researcher and Advanced Penetration Tester
GIAC certifications must be renewed every four years by earning 36 CPE credits or retaking the exam. Stay current with the latest technologies and maintain your certification.
Learn more about renewal requirementsThis certification is currently active and available. GIAC (SANS) maintains this certification to validate current skills and industry relevance.
Register for the exam through GIAC, GIAC (SANS)’s authorized testing partner.
Schedule your examVisit the official GIAC (SANS) certification page for exam policies and requirements.
View the official pageYour coach in the app reads what you have answered with the book closed and tells you one thing to do tonight. It will not count an answer you gave with the page open, and it will tell you when you are not ready.
See how the coach worksGXPN is a Practitioner-level certification focused on exploit research and advanced penetration testing. It is part of GIAC's Offensive Operations focus area and can be combined with other certifications to earn portfolio credentials like the GIAC Security Professional (GSP) or GIAC Security Expert (GSE).
Yes, the GXPN exam uses GIAC's CyberLive format, which replaces traditional multiple-choice testing with performance-based challenges in realistic lab environments. You will work with virtual machines, real security tools, and authentic code to demonstrate your skills.
GIAC does not publish a specific retake policy on the GXPN exam page. For detailed information on retake policies, please refer to your GIAC account or contact GIAC directly.
Yes, passing other GIAC certification exams can earn CPE credits toward your GXPN renewal. However, the renewal itself requires either 36 CPE credits or retaking the GXPN exam.
GXPN is designed for network penetration testers, systems penetration testers, incident handlers, application developers, IDS engineers, and security personnel responsible for assessing target networks, systems, and applications to find vulnerabilities.
GIAC offers both remote proctoring through ProctorU and onsite proctoring through PearsonVUE, making the exam available in many regions. Check the GIAC website for specific availability in your area.
Every domain, every objective, and every concept GIAC (SANS) measures — each one written out.





Every objective below is a page you can open and practise now, without an account.
The official GIAC (SANS) exam outline · checked 30 July 2026 · See the source
In front of every objective the practice pages are already there, free and without an account. This is one objective, opened.
35 questions on this objective, five to a page. Every range above is a real page, open now, with no account.
The curriculum tells you what is on the exam. Proving you know it is a different job — and it is the one the closed-book run does.
The whole bank is open. 5 questions to a page, every answer explained, and a discussion thread on each one.
Every objective, and every page range, is a link — so you can pick up exactly where you left off.
Short enough to finish, long enough to matter.
Not only which one is right — why the others are wrong.
Ask, answer, and vote. Every question has its own thread.
These are not trivia. Each one is written against a concept in the book, so when you get one wrong there is somewhere to go and find out why.

The pages shown here come from our AI-900 book — an example of how each concept is written in plain language and, where the idea needs one, drawn as a full page you can take in at a glance.





Three reasons, and each one is a real finding rather than a slogan.
You can see it againUnder pressure people bring back shapes and positions long after the wording has gone.
Picture superiority · Shepard 1967, Standing 1973
The whole idea at onceWhere it starts, what happens in the middle, what comes out, and the mistake to avoid.
Multimedia principle · Mayer
The look-alikes sit togetherThe pairs the exam tests are drawn side by side, so the difference is seen, not told.
Dual coding · PaivioYou are never asked to read a poster here — only to see how one is built. After that, every other page is legible at a glance.

The idea as a sequence, followed with a finger before a word is read.
What it is, how the machine learns it, when it is the right tool.
The distinction the exam tests, given its own box instead of buried in prose.
The sentence to carry into the exam room.
This is the part that teaches. The illustration and the written explanation stay where they are while you work, so a scenario stops being a memory test and becomes something you can simply look at.
A smartphone uses AI to unlock when the owner looks at the camera. Which AI capability is being used?

The same questions come back with the book closed — that run is the one that counts. After it, your coach picks one thing for tonight, sized to the time you have, and brings pages back before you lose them.
Testing effect · Roediger & Karpicke 2006 · spacing effect · Cepeda et al. 2006
Where the exam is defined, scheduled and scored.
We link to them rather than repeat them, so nothing here goes stale behind them.
We build from the official skills outline, not from a summary of it — 14 objectives, 117 concepts written under them, and free questions against every one. When GIAC (SANS) changes the outline, this page changes with it.
That is the only question worth answering the night before, and no link answers it. You answer it by taking the questions with the book closed, and seeing what comes back.