# Field notes

> Short analysis of public incidents and research, mapped to Build, Run, Observe, Control, and Secure.

Source: https://brocs.fyi/post/
Framework: BROCS (Build, Run, Observe, Control, Secure), brocs.fyi. CC BY 4.0, attribute to brocs.fyi.

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These notes examine public incidents and research through the BROCS capabilities. Each
one records the reported facts, the relevant controls, and the source. Incidents with a
stable public record also enter the [failure-mode library](/resources/failure-modes/).




## Pages under Field notes

- [When llms.txt names unregistered packages](https://brocs.fyi/post/llms-txt-execution-surface/): A reported scan found 120 corporate llms.txt files that referenced unregistered packages or domains. The failure spans Build, Secure, and Run.