The Identity Layer for AI Agents Is Finally Being Built
In March I published a piece arguing that AI agents don't have identities and that this was already a security crisis. The claim was operational. We were deploying systems that read files, call APIs and chain tools together, while the answer to the most basic security question, who exactly is acting right now, was still a shared account, a reused API key and permissions far broader than any single task required.
Four months later the diagnosis holds. Agent identity is not solved end to end. What changed is that the problem became explicit. Between March and July 2026 it showed up in protocol releases, enterprise features and papers with measured results. The identity layer for AI agents is finally being built. It just isn't finished.
A2A grew up first
The first milestone landed almost on top of my original article. On March 12, the A2A project shipped v1.0.0, its first...
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