Christopher Holloway
Christopher Holloway is the founder and director of Progressive Robot, a UK-based technology company. A full-stack engineer with more than two decades of experience, he works across PHP development, ecommerce, Linux infrastructure, technical SEO and AI automation, and writes here on technology, AI, hardware and software.
Cybersecurity in the Intelligence Age
OpenAI outlines a five-part action plan for strengthening cybersecurity in th...
Trusted access for the next era of cyber defense
OpenAI expands its Trusted Access for Cyber program, introducing GPT-5.4-Cybe...
Our response to the Axios developer tool compromise
OpenAI responds to the Axios supply chain attack by rotating macOS code signi...
Designing AI agents to resist prompt injection
How ChatGPT defends against prompt injection and social engineering by constr...
Our response to the TanStack npm supply chain attack
OpenAI details its response to the TanStack “Mini Shai-Hulud” supply chain at...
Disrupting malicious uses of AI | February 2026
Our latest threat report examines how malicious actors combine AI models with...
Introducing Trusted Access for Cyber
OpenAI introduces Trusted Access for Cyber, a trust-based framework that expa...
Keeping your data safe when an AI agent clicks a link
Learn how OpenAI protects user data when AI agents open links, preventing URL...
Accelerating the cyber defense ecosystem that protec...
Leading security firms and enterprises join OpenAI’s Trusted Access for Cyber...
Why Codex Security Doesn’t Include a SAST Report
A deep dive into why Codex Security doesn’t rely on traditional SAST, instead...
Extending single-minus amplitudes to gravitons
A new preprint extends single-minus amplitudes to gravitons, with GPT-5.2 Pro...
How business operations teams use Codex
See how business operations teams can use Codex to create initiative briefs, ...
Work with Codex from anywhere
Use Codex anywhere with the ChatGPT mobile app. Monitor, steer, and approve c...
Building a safe, effective sandbox to enable Codex o...
Learn how OpenAI built a safe, effective sandbox to enable Codex on Windows w...
How finance teams use Codex
See how finance teams can use Codex to build MBRs, reporting packs, variance ...
How NVIDIA engineers and researchers build with Codex
Teams use Codex with GPT-5.5 to ship production systems and turn research ide...