Cobalt
Offensive Security as a Service platform
Cobalt launched on March 19, 2021 with 66 votes, #964 of 3,696 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 5 years on.
What it does
Cobalt empowers our customers to operate fearlessly and innovate securely with our unique blend of global human intelligence, disruptive technology, and unmatched speed, scale and expertise. Our Cobalt Platform, combined with an exclusive community of trusted security experts, keeps you ahead of evolving threats and accelerates secure innovation. When you choose Cobalt, you optimize resources, accelerate remediation, and drive business value with human-led, Ai-powered, offensive security.
Offensive security services from human-led to autonomous pentesting. Identify exposures, get ahead of threats, and maintain compliance—fast and precise.
The definitive benchmark for offensive security and remediation performance. Discover the security challenges of AI adoption and how to address them. Discover how AI is your highest-risk asset. The organizations closing that gap do six things differently. Identify exposures, stay ahead of threats, and maintain compliance. From human-led to autonomous pentesting, we provide a full suite of offensive security services that are fast, flexible, and precise. No matter your security challenges and goals, Cobalt can help you build a pentesting program that makes sense for your business. Your environment is constantly changing, and your attack surface is ever-expanding. Run a full-scale offensive…from cobalt.io
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CobaltAug 2026 · cobaltcode.ai · ▲4Hi HN, I'm building CobaltCode, a platform for running coding agents inside persistent development environments. Basically I was fed up with git worktrees and having to run everything locally, usually one at a time so built CobaltCode.ai. Each task gets an separate vm with its own repository checkout, dependencies, running services, agent session, previews, and persistent state. It can also run your app inside the vm so you can preview different features in parallel. You can leave a task, resume it later, or save the computer as a reusable starting point. The agent is a full-fledged Codex…
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