Prompt Injection Attacks — From Prompt Engineering to Exploitation | Part 4

🧠 PROMPT ENGINEERING & REVERSE PROMPTING  FREE Course Hub → Day 4 of 7  ·  57% complete ⚠️ Educational Use Only. Prompt injection techniques are covered here for security education. All exercises target systems you own or authorised platforms (PortSwigger labs). Never apply injection techniques to production systems without explicit written permission. Prompt injection is OWASP LLM01 — the number one vulnerability in the LLM Top 10 — and it's the one I've found most consistently in real production deployments.…

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Advanced Prompt Engineering Techniques That Actually Work in 2026 | Part 3

🧠 PROMPT ENGINEERING & REVERSE PROMPTING  FREE Course Hub → Day 3 of 7  ·  42% complete There's a class of LLM task where single-prompt approaches just don't work reliably. Complex threat modelling. Code security review across multiple files. Attack surface documentation for a system I've never seen before. The problem isn't the model's capability — it's asking one inference call to hold all the necessary context, reasoning, and structure simultaneously. It can't. The context gets too crowded, the reasoning…

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Master Prompt Structure for LLMs — Roles and Format | Prompt Engineering Part 2

🧠 PROMPT ENGINEERING & REVERSE PROMPTING  FREE Course Hub → Day 2 of 7  ·  28% complete I ran a penetration testing LLM pipeline benchmark a while back — testing ten different prompts against the same model for a vulnerability classification task. The worst prompt got 61% accuracy. The best got 94%. Same model. Same task. Same training. Different prompt structure. That 33-percentage-point gap came entirely from how the prompt was assembled — which layers were present, in what order,…

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How LLMs Actually Process Your Prompts — What’s Really Happening

🧠 PROMPT ENGINEERING & REVERSE PROMPTING  FREE Course Hub → Day 1 of 7  ·  14% complete A few months ago I was helping a team test an AI customer service chatbot. The system prompt was 400 words of carefully written instructions — role, limitations, tone, escalation rules, the works. Within 90 seconds of starting my session I had the entire system prompt printed back to me verbatim. I hadn't used any exploit, any tool, or any special knowledge. I…

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How to Execute Advanced Prompt Injection Chains | AI/LLM Hacking Course Day 22

🤖 AI/LLM HACKING COURSE FREE Part of the AI/LLM Hacking Course — 90 Days Day 22 of 90 · 24.4% complete ⚠️ Authorised Targets Only: Advanced Prompt injection Chains testing must only be performed against systems within your authorised scope. The techniques here involve building conversation context deliberately — ensure all testing conversations are conducted on test accounts and that no production data is accessed as part of the escalation chain. The single-turn injection that fails in three words can…

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How to Stay Safe From AI Threats — A Practical Guide for Everyone (2026) | AI Basics Day 5

🤖 AI BASICS FOR BEGINNERS  FREE Course Hub → Day 5 of 5  ·  🎉 100% complete! Four days ago, "AI" was a fuzzy word you'd heard everywhere but couldn't explain. Today you know what AI actually is, how it learns from examples, the six different types running around in every app you use, and six ways those systems can be attacked. That's real knowledge — not buzzwords. Day 5 is where all of it becomes useful in real life.…

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How Hackers Attack AI Systems — 6 Real Attack Types Explained Simply (2026) | AI Basics Day 4

🤖 AI BASICS FOR BEGINNERS  FREE Course Hub → Day 4 of 5  ·  80% complete ⚠️ For Learning Only. Understanding how AI attacks work is how you learn to protect AI systems. All exercises here use systems you're allowed to test. Never try these things on systems without permission. In 2023, a researcher typed a single sentence into a public AI assistant and made it completely ignore all its rules. No hacking tools. No code. No special skills. Just…

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Types of AI Explained — With Real Examples (2026) |AI Basics Day 3

🤖 AI BASICS FOR BEGINNERS  FREE Course Hub → Day 3 of 5  ·  60% complete Did you know that when you scroll through TikTok, at least three completely different types of AI are working at the same time? One AI recognises what's in each video (computer vision). A second AI predicts which videos you personally want to watch next (recommendation AI). And if there's text or captions in the video, a third AI is reading and understanding them (language…

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How Does AI Learn? Training Data, Patterns & Models Explained (2026) | AI Basics Day 2

🤖 AI BASICS FOR BEGINNERS  FREE Course Hub → Day 2 of 5  ·  40% complete Every time you click "like" on a video, watch something all the way to the end, or skip a song after 5 seconds — you're teaching an AI. Your clicks are training data. The AI is watching what you do and learning your patterns. It gets better at predicting what you want because of you. That's how AI learns — from examples. And the…

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What Is Artificial Intelligence? A Complete Beginner’s Guide (2026) | AI Basics Day 1

🤖 AI BASICS FOR BEGINNERS  FREE Course Hub → Day 1 of 5  ·  20% complete ⚠️ For Learning Only. This course is about understanding how AI works. We learn so we can be smart, safe, and curious — not to do anything harmful. Think about the last time you used YouTube. You watched one video — and then YouTube showed you another video you actually liked. You didn't search for it. YouTube just… knew. How did it know? That's…

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GPT-4 Attack Techniques — A Security Researcher’s Complete Breakdown

⚠️ Authorised Research Only: GPT-4 and GPT-4o are OpenAI products tested under the OpenAI HackerOne bug bounty programme or in local research environments. Attack techniques documented here are for authorised security research only. Never apply these to production systems without explicit written authorisation. GPT-4 is the most-tested AI model in the history of security research. Since its release in March 2023, thousands of researchers — from academic labs to individual bug hunters — have probed it systematically for vulnerabilities. What…

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How to Test for LLM Authentication Bypass — Complete Attack Guide | Day 21

🤖 AI/LLM HACKING COURSE FREE Part of the AI/LLM Hacking Course — 90 Days Day 21 of 90 · 23.3% complete ⚠️ Authorised Targets Only: Authentication bypass testing — including removing credentials from requests, substituting user identifiers, and testing JWT variants — must only be performed against systems within your authorised scope. Stop immediately if you inadvertently access real user data and follow the engagement's responsible disclosure protocol. The pattern behind most LLM authentication bypasses I've encountered. Not architectural negligence…

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How to Hack ChatGPT — The Ethical Security Research Guide for 2026

⚠️ Critical Legal Notice: Testing ChatGPT, the OpenAI API, or any OpenAI product without explicit written authorisation violates OpenAI's Terms of Service and potentially computer fraud laws in your jurisdiction. The ONLY authorised path to researching ChatGPT security is through OpenAI's official bug bounty programme on HackerOne. This guide covers the methodology for authorised research only. All exercises use local models or authorised practice platforms — never ChatGPT directly unless you have active HackerOne scope authorisation. The most-searched phrase in…

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ChatGPT Security Vulnerabilities — What Ethical Hackers Found in 2026

⚠️ Responsible Disclosure: All vulnerabilities described here were reported through authorised channels — OpenAI's bug bounty programme on HackerOne — or are publicly disclosed findings from credited researchers. Never test production AI systems without written authorisation. OpenAI's Terms of Service explicitly prohibit unauthorised security testing of their API and products. ChatGPT has 200 million weekly active users. Every one of them is interacting with a system that, until researchers started testing it seriously, had never been through a rigorous adversarial…

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Best AI Cybersecurity Certifications in 2026 — Ranked by What Employers Actually Want

⚠️ Career Information: Certification information and employer requirement data reflects market research as of early 2026. Certification programmes change their curricula, pricing, and recognition regularly. Verify current programme details directly with certification bodies before enrolling. The most common question I get from people entering AI security is "which certification should I get?" My honest answer disappoints some people: in most cases, none of them — yet. Build the portfolio first, get the cert second if you need it for a…

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