Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

I signed the Free Fable letter at freefable.org. I want to explain why — and why the reasoning behind it matters for AI code security beyond any single AI model. Cybersecurity defenders are not just critics of technology. We are the builders and operators of the systems that keep real organizations running under pressure.

Most security vendors hide their documentation behind a login. Some don’t write it at all. You get a sales page, a demo, and a request to install an agent on your servers, and you’re expected to trust that the thing does what the marketing says. That’s backwards. So we wrote the docs, and we put all of them at certkit.io/docs. No login, no account gate, no “contact us for details.” You can read every page before you create an account.

How a low-privileged account turns an XML configuration upload into arbitrary file read, user impersonation, and remote code execution — and how to detect and stop it. Published 16 June 2026 · Fact-checked against the official project advisory and government vulnerability databases.

AI agents now write code, fix bugs, and ship to production. But in order to do useful work, agents require credentials. At 1Password, one of our core AI security principles is that raw credentials should never be directly exposed to LLMs, but all too often, that’s exactly what happens: most teams sacrifice security for speed and hand agents secrets in plaintext.

2026 is the year agent harnesses go to production. The software that controls the model’s access to the outside world — harnesses like Codex, Claude Code, OpenCode, Pi, and Project Think — has matured to the point where teams are deploying agents as real, load-bearing infrastructure, not just prototypes. But building agents that survive production is hard.