https://hackergpt.org/blog/ Articles on offensive security, methodology and how HackerGPT works: pentesting your own website, CTFs, OSINT and vulnerability briefs. en Sun, 25 Oct 2026 00:00:00 GMT https://hackergpt.org/logo.png https://hackergpt.org/blog/ https://hackergpt.org/blog/idor-vulnerability-example/ https://hackergpt.org/blog/idor-vulnerability-example/ Sun, 25 Oct 2026 00:00:00 GMT HackerGPT Team IDOR explained on a real vulnerable handler from CyberGym, reproduced locally with two users, and fixed with server-side ownership checks you can copy. Web Security Web Vulnerabilities Broken Access Control CyberGym Penetration Testing A filing cabinet on a dark field, its top drawer open and glowing green while the key sits in the bottom lock https://hackergpt.org/blog/ctf-for-beginners-web-challenges/ https://hackergpt.org/blog/ctf-for-beginners-web-challenges/ Sat, 24 Oct 2026 00:00:00 GMT HackerGPT Team What a CTF is, the main categories, a starter toolset and a worked web challenge on CyberGym — plus whether an AI may coach you through one. CTF Web Security CyberGym Offensive Security Penetration Testing A lit browser-shaped practice target inside a green boundary ring in a dark hall https://hackergpt.org/blog/how-to-pentest-your-own-website/ https://hackergpt.org/blog/how-to-pentest-your-own-website/ Sat, 24 Oct 2026 00:00:00 GMT HackerGPT Team Pentest your own website with an AI agent: scope and permission first, then recon, mapping, testing and reading findings — a worked run on CyberGym. AI Pentesting Penetration Testing Web Security Attack Surface CyberGym Abstract green AI node scanning a grid of web endpoints and locked gateways on a dark field https://hackergpt.org/blog/http2shell-brotli-cve-2026-111497/ https://hackergpt.org/blog/http2shell-brotli-cve-2026-111497/ Sat, 24 Oct 2026 00:00:00 GMT HackerGPT Team How the Brotli decoder bug behind HTTP2Shell and Node2Shell works, how to check your Node.js and Python apps, and which versions fix it. Vulnerability Assessment DevSecOps Node.js Python Patch Management Compressed data blocks overflowing a small fixed-size buffer into neighbouring memory https://hackergpt.org/blog/map-web-app-attack-surface/ https://hackergpt.org/blog/map-web-app-attack-surface/ Sat, 24 Oct 2026 00:00:00 GMT HackerGPT Team Map your web app before testing it: build a state graph of its pages, enumerate every API endpoint, and record the auth each expects. Worked on CyberGym. Attack Surface Management Penetration Testing Reconnaissance Web Reconnaissance OSINT Abstract network graph split by a vertical boundary line, green nodes on a dark field https://hackergpt.org/blog/php2shell-cve-2026-109618-109619/ https://hackergpt.org/blog/php2shell-cve-2026-109618-109619/ Sat, 24 Oct 2026 00:00:00 GMT HackerGPT Team How the PHP2Shell bugs work, which PHP versions have a fix, how to check your own servers and what to do if you cannot upgrade today. Vulnerability Assessment DevSecOps PHP Patch Management Web Security A wave of red warning lights spreading across server racks, with patched rows glowing green https://hackergpt.org/blog/practice-hacking-legally/ https://hackergpt.org/blog/practice-hacking-legally/ Sat, 24 Oct 2026 00:00:00 GMT HackerGPT Team Why permission is what makes hacking practice legal, which free targets give it (Juice Shop, PortSwigger, picoCTF, TryHackMe, HTB) and a first CyberGym session. practice-targets CyberGym CTF Web Security Penetration Testing Lit training ground inside a green boundary in a dark server hall, practice targets on stands https://hackergpt.org/blog/vibe-coded-app-security-checklist/ https://hackergpt.org/blog/vibe-coded-app-security-checklist/ Sat, 24 Oct 2026 00:00:00 GMT HackerGPT Team A security checklist for vibe-coded and indie SaaS apps: secrets in the bundle, endpoint auth, object ownership, Supabase RLS, webhooks, headers and deps. SaaS Security Web Security Attack Surface Supabase CyberGym Abstract green checklist over a dark grid of web endpoints and locked and unlocked gateways https://hackergpt.org/blog/hackergpt-update-stateful-ctf-engagements-concurrent-steering-and-decoupled-browsing/ https://hackergpt.org/blog/hackergpt-update-stateful-ctf-engagements-concurrent-steering-and-decoupled-browsing/ Sat, 23 May 2026 23:01:02 GMT HackerGPT Team Discover the latest HackerGPT update featuring stateful memory for CTF engagements, concurrent task steering, and a decoupled, low-latency browsing engine. HackerGPT Penetration Testing CTF Offensive Security OSINT Illustration: A showcase of the new HackerGPT CTF mode featuring stateful context management and memory tracking. https://hackergpt.org/blog/hackergpt-050-advancing-applied-security-training-with-ctf-mode/ https://hackergpt.org/blog/hackergpt-050-advancing-applied-security-training-with-ctf-mode/ Thu, 19 Mar 2026 03:21:31 GMT HackerGPT Team Explore HackerGPT 0.5.0's CTF Mode. Enhance security training with headless browser automation, traffic interception, and automated payload management. HackerGPT CTF Vulnerability Discovery Browser Automation Prompt Injection Illustration: HackerGPT utilizing headless browser automation to intercept and analyze HTTP traffic dynamically. https://hackergpt.org/blog/scanning-reconnaissance-tool/ https://hackergpt.org/blog/scanning-reconnaissance-tool/ Sun, 08 Feb 2026 00:00:00 GMT HackerGPT Team A technical guide to operationalizing network reconnaissance. Explore subdomain enumeration, Nmap strategies, and service fingerprinting for security pros. Network Security Reconnaissance Nmap Attack Surface Management DevSecOps Illustration: An abstract visualization of a network topology showing the relationship between subdomains, IPs, an https://hackergpt.org/blog/web-security/ https://hackergpt.org/blog/web-security/ Sat, 07 Feb 2026 03:41:04 GMT HackerGPT Team How to check your site's TLS configuration with sslscan, look up a CVE in NVD, and log the API calls a page makes, with real output from CyberGym. Web Security Vulnerability Assessment Web Reconnaissance CyberGym HackerGPT A green wireframe padlock over a dark grid, with thin streams of light flowing into it https://hackergpt.org/blog/intelligence-gathering/ https://hackergpt.org/blog/intelligence-gathering/ Fri, 06 Feb 2026 00:00:00 GMT HackerGPT Team Find what public sources reveal about your own domain and company: registration, DNS, certificate logs, search engines and breach data, with a real run. OSINT Reconnaissance Attack Surface Management Threat Intelligence HackerGPT A green domain node on a dark field with lines reaching out to scattered public records https://hackergpt.org/blog/independence-from-openai/ https://hackergpt.org/blog/independence-from-openai/ Mon, 12 Jan 2026 12:00:00 GMT HackerGPT Team HackerGPT Lite no longer relies on the OpenAI API: free-tier prompts now run on self-hosted models, on servers we physically own and control. openai independence Illustration: glowing processor clusters linked by light trails around a central chip with a brain and shield icons, suggesting a decentralized GPU network. https://hackergpt.org/blog/why-we-created-hackergpt/ https://hackergpt.org/blog/why-we-created-hackergpt/ Mon, 28 Jul 2025 12:00:00 GMT HackerGPT Team Why HackerGPT exists: breaches start with gaps in technical insight, and LLM-powered guidance can help defenders understand the systems they run. cybersecurity education Illustration: a circular cycle of glowing icons (a brain, an eye, a magnifying glass over data and a cracked shield with a wrench) around a central chip. https://hackergpt.org/blog/the-era-of-autonomous-warfare-why-human-defense-can-no-longer-keep-up/ https://hackergpt.org/blog/the-era-of-autonomous-warfare-why-human-defense-can-no-longer-keep-up/ Tue, 10 Jun 2025 16:11:16 GMT HackerGPT Team Discover how autonomous AI agents are reshaping cybersecurity. Learn why manual defense fails and how to build an autonomous security infrastructure. Cybersecurity AI Security Autonomous Defense DevSecOps InfoSec Illustration: A visual comparison showing the evolution from manual human hackers to automated scripts, and finall https://hackergpt.org/blog/the-asymmetric-war-why-manual-defense-fails-against-autonomous-attacks/ https://hackergpt.org/blog/the-asymmetric-war-why-manual-defense-fails-against-autonomous-attacks/ Tue, 13 May 2025 04:00:03 GMT HackerGPT Team Traditional security stacks are failing against automated threats. Learn how AI-driven red teaming bridges the gap between continuous deployment and security. Cybersecurity AI Security Red Teaming DevSecOps HackerGPT Illustration: A diagram illustrating the frequency gap between daily code deployments and quarterly security audit https://hackergpt.org/blog/the-cybersecurity-talent-gap-crisis-causes-and-the-path-forward/ https://hackergpt.org/blog/the-cybersecurity-talent-gap-crisis-causes-and-the-path-forward/ Tue, 01 Apr 2025 04:58:53 GMT HackerGPT Team The global cybersecurity talent gap puts organizations at risk. Explore the causes, the entry-level paradox, and how hands-on training can bridge the shortage. Cybersecurity Workforce InfoSec Careers Talent Gap DevSecOps Purple Teaming Illustration: A line graph showing the exponential rise in cyber threats versus the linear growth of the security https://hackergpt.org/blog/defense-against-data-aggregation-privacy-engineering-in-the-digital-economy/ https://hackergpt.org/blog/defense-against-data-aggregation-privacy-engineering-in-the-digital-economy/ Sat, 29 Mar 2025 09:00:00 GMT HackerGPT Team Explore technical strategies to combat data aggregation and shadow profiles. Covers differential privacy, OPSEC, and decentralized identity for security pros. Privacy Engineering Data Security OPSEC Differential Privacy Cybersecurity Illustration: A diagram illustrating the difference between direct data collection (silos) and inferential data ag https://hackergpt.org/blog/security-visibility-vs-privacy-navigating-legal-and-ethical-constraints-in-the-soc/ https://hackergpt.org/blog/security-visibility-vs-privacy-navigating-legal-and-ethical-constraints-in-the-soc/ Thu, 27 Mar 2025 09:00:00 GMT HackerGPT Team Explore the legal and ethical challenges of security visibility. Learn how to balance TLS inspection, UAM, and DLP with privacy laws like GDPR. Security Operations Data Privacy TLS Inspection GDPR Zero Trust Illustration: A Venn diagram illustrating the intersection of Security Visibility, Legal Compliance, and Ethical P https://hackergpt.org/blog/defending-against-the-convergence-ai-driven-malware-and-volumetric-ddos/ https://hackergpt.org/blog/defending-against-the-convergence-ai-driven-malware-and-volumetric-ddos/ Tue, 25 Mar 2025 09:00:00 GMT HackerGPT Team Learn strategies to defend against multi-vector attacks combining AI-driven malware and DDoS. Discover SIEM correlation logic and architectural best practices. Cybersecurity DDoS Mitigation Malware Analysis SecOps SIEM A dark tech-style illustration visualizing a high-volume DDoS attack waveform alongside a low-volume lateral movement path and data exfiltration icon. https://hackergpt.org/blog/edr-and-xdr-internals-a-technical-assessment-of-efficacy-and-evasion/ https://hackergpt.org/blog/edr-and-xdr-internals-a-technical-assessment-of-efficacy-and-evasion/ Sun, 23 Mar 2025 09:00:00 GMT HackerGPT Team A technical deep dive into EDR/XDR architecture, evasion techniques like direct syscalls, eBPF visibility, and the operational reality of detection engineering. EDR XDR Cybersecurity Malware Analysis eBPF Illustration: Diagram illustrating the transition from legacy signature-based prevention to modern behavioral tele https://hackergpt.org/blog/insider-threat-defense-architecting-security-against-negligence-and-malice/ https://hackergpt.org/blog/insider-threat-defense-architecting-security-against-negligence-and-malice/ Fri, 21 Mar 2025 09:00:00 GMT HackerGPT Team Learn how to architect defense against insider threats. Covers JIT access, SDLC guardrails, UEBA detection, and DLP strategies for security professionals. Insider Threat Identity Management DevSecOps Zero Trust Cloud Security Illustration: A diagram illustrating the spectrum of insider threats from accidental negligence to malicious inten https://hackergpt.org/blog/converging-defense-unifying-strategies-for-fraud-prevention-and-data-security/ https://hackergpt.org/blog/converging-defense-unifying-strategies-for-fraud-prevention-and-data-security/ Tue, 18 Mar 2025 09:00:00 GMT HackerGPT Team Discover technical strategies to merge InfoSec and fraud defense. Learn about behavioral telemetry, FIDO2 authentication, and context-aware rate limiting. Fraud Prevention Data Security Cybersecurity Strategy Identity Management DevSecOps Illustration: A Venn diagram illustrating the overlapping threats of Account Takeover and Synthetic Identity Fraud https://hackergpt.org/blog/operationalizing-cyber-resilience-from-compliance-checklists-to-engineering-blueprints/ https://hackergpt.org/blog/operationalizing-cyber-resilience-from-compliance-checklists-to-engineering-blueprints/ Sat, 15 Mar 2025 09:00:00 GMT HackerGPT Team A technical guide for security architects on transforming compliance frameworks (NIST CSF 2.0, ISO 22301) into operational resilience strategies. Cyber Resilience NIST CSF ISO 22301 MITRE ATT&CK DevSecOps Illustration: A diagram contrasting the linear 'Protect' model with the cyclical 'Anticipate, Withstand, Recover, https://hackergpt.org/blog/securing-critical-infrastructure-the-otit-convergence-and-resilience-strategy/ https://hackergpt.org/blog/securing-critical-infrastructure-the-otit-convergence-and-resilience-strategy/ Wed, 12 Mar 2025 09:00:00 GMT HackerGPT Team A technical guide to securing critical infrastructure. Covers Modbus risks, the Purdue model, passive monitoring, and safety-critical incident response. Critical Infrastructure OT Security ICS Cybersecurity Network Segmentation Illustration: A diagram illustrating the intersection of Operational Technology and Information Technology network https://hackergpt.org/blog/hackergpt-crypto-analysis/ https://hackergpt.org/blog/hackergpt-crypto-analysis/ Tue, 11 Mar 2025 00:00:00 GMT HackerGPT Team Explore HackerGPT's Crypto OSINT capabilities. Automate token auditing, cross-chain wallet forensics, and OFAC sanctions screening for faster incident response. Crypto Forensics OSINT Blockchain Security HackerGPT Compliance Illustration: Diagram illustrating how HackerGPT aggregates data from blockchain nodes, block explorers, and threa https://hackergpt.org/blog/bridging-the-cybersecurity-skills-gap-an-engineering-approach/ https://hackergpt.org/blog/bridging-the-cybersecurity-skills-gap-an-engineering-approach/ Sat, 08 Mar 2025 09:00:00 GMT HackerGPT Team Stop hunting for unicorns. Discover how security leaders are solving the skills shortage through automation, adjacent hiring, and GenAI augmentation. Cybersecurity Security Operations Talent Acquisition SOAR Security Engineering Illustration: A split comparison graphic showing 'Unicorn' job descriptions with excessive requirements versus the https://hackergpt.org/blog/securing-corporate-ai-a-technical-framework-for-llm-architecture/ https://hackergpt.org/blog/securing-corporate-ai-a-technical-framework-for-llm-architecture/ Tue, 04 Mar 2025 09:00:00 GMT HackerGPT Team A technical guide for security architects on implementing LLMs safely. Covers AI gateways, RAG security, prompt injection defense, and data governance. AI Security LLM Governance DevSecOps RAG Architecture Prompt Injection Illustration: A diagram illustrating the new attack vectors introduced by LLMs, contrasting deterministic software https://hackergpt.org/blog/state-sponsored-cyber-threats-building-resilience-against-the-infinite-budget/ https://hackergpt.org/blog/state-sponsored-cyber-threats-building-resilience-against-the-infinite-budget/ Fri, 28 Feb 2025 09:00:00 GMT HackerGPT Team Discover technical strategies to counter state-sponsored cyber threats. Learn about behavioral analytics, identity resilience, and deception technology. Cybersecurity APT Defense Blue Team Zero Trust Threat Hunting Illustration: A diagram illustrating the 'Pyramid of Pain,' showing how behavioral detection is harder for attacke