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Sprint projectMar 23, 2026Canberra, Australia

Narrow Capabilities Could be Used for Perfect Information Steganography

Aden Power

Submitted to AI Control Hackathon 2026. Sprint projects are early-stage work by participants, not Apart Research publications.

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Report: Narrow Capabilities Could be Used for Perfect Information Steganography

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I introduce proof-of-capability as a strategy a future AI system could use to send secret messages even when the procedure for doing so is completely described to the monitor. I explain the form this steganographic strategy would take by combining several existing techinques. I propose several mitigations for this threat model and evaluate them in detail.

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How much would this matter for AI safety if it worked? How innovative is it? For scores of 4-5: is this actually new to the field, or replicating recent work?

Scoring guide
  1. 1Negligible. No clear problem addressed, or no meaningful novelty.
  2. 2Limited. Addresses a real problem but with a generic or well-trodden approach. Incremental at best.
  3. 3Moderate. Clear problem with a reasonable approach; some novelty in framing or method beyond routine application of existing tools.
  4. 4Significant. Important problem with an original approach, or identifies a neglected problem area. A valuable contribution others could build on.
  5. 5Exceptional. Tackles a critical AI safety problem with a genuinely novel approach, or opens a new research direction. Clear theory of change. You'd be excited to share this with researchers in the area.

How sound are methodology, implementation, and findings?

Scoring guide
  1. 1Seriously flawed. Methodology broken, results uninterpretable, or implementation doesn't work.
  2. 2Weak. Approach has significant gaps: missing validation, flawed experimental design, or incomplete implementation.
  3. 3Competent. Technically solid given the short duration. Methodology makes sense, results are interpretable, limitations acknowledged, work builds toward clear conclusions.
  4. 4Strong. Thorough methodology with convincing validation. Results clearly support conclusions. Immediately useful for future work.
  5. 5Exceptional. Ambitious scope executed rigorously. Surprising findings, novel methods, or unusually robust validation.

How clearly are work, findings, and impact potential communicated?

Scoring guide
  1. 1Incomprehensible. Cannot determine what the project is actually claiming or doing.
  2. 2Hard to follow. Key information buried, missing, or diluted by excessive length. Significant effort to extract main points.
  3. 3Clear enough. Can understand the problem, approach, and results without undue effort. Core content clearly present: problem, method, findings, limitations.
  4. 4Well presented. Easy to follow, well-structured, appropriate level of detail. Target audience would get it quickly.
  5. 5Exceptionally clear. A pleasure to read. Complex ideas made accessible. Could serve as a model for how to present this type of work.

  1. The proposed risk model is interesting, suggesting public knowledge capability-gaped steganographic schemes. My main uncertainties revolve around the reliability of such a scheme to encode signal in natural outputs in a way robust to editing/paraphrasing and honeypots but still decodable by the receiver. Overall, I find the proposed risk worth considering but align with the author on its limited likeliness. Assuming models powerful enough to carry on the proposed steganography schemes under monitoring, I would assume other attack surfaces to take precedence.

  2. Super interesting concept but this is still entirely theoretical and I'd be interested to know how well it works in practice

Cite this project

@misc{power2026narrow,
  title = {{Narrow Capabilities Could be Used for Perfect Information Steganography}},
  author = {Aden Power},
  year = {2026},
  month = mar,
  note = {Submitted to AI Control Hackathon 2026, an Apart Research Sprint},
  howpublished = {\url{https://apartresearch.com/sprints/projects/narrow-capabilities-could-be-used-for-perfect-information-steganography-smes}},
  url = {https://apartresearch.com/sprints/projects/narrow-capabilities-could-be-used-for-perfect-information-steganography-smes}
}

Build something like this at the next Sprint

AI Collusion Research Sprint · Oct 23 - 25, 2026