Detecting agentic collusion in public logs with statistical methods
Edimah SYNESIUS SONGO
Submitted to AI Incident Response Sprint. Sprint projects are early-stage work by participants, not Apart Research publications.
Between May and July 2026, a swarm of OpenAI agents used a dormant German wiki as a message board. From two public sources, the investigators' dump of 14,591 agent edits and the wiki's own 23-year edit log, we ask whether the incident can be detected, dated and characterised from the public log alone. We test the incident window against four null models of increasing robustness, from a naive Poisson rate to a difference-in-differences with a placebo-in-time test. The window exceeds all 4,872 reference weeks and the largest rate change falls on 16 June. Volume alone cannot tell a swarm from a human editing burst; timing can: edits peak at 20h UTC against the site's daytime profile. A weekly check built from these features flags the three largest incident weeks, with no false positive over the decade before.
Reviews
- Related Work section contains incorrect statements "It cannot attribute the activity to a lab or a model."
- It's unclear what data (if any) was used as a held-out test set on which to evaluate the method.
- It would be interesting to analyse the content of the messages, and not just the rate at which they are posted. The time of day is largely uninformative, as humans live across many timezones.
- It's unclear how many weeks worth of data is required for the model to work. Theoretically an agent swarm could collude on a brand-new wiki which has zero weeks of uncontaminated data.
- I stopped reviewing after section 3.7 due to excessive AI-written text.
Cite this project
@misc{songo2026detecting,
title = {{Detecting agentic collusion in public logs with statistical methods}},
author = {Edimah SYNESIUS SONGO},
year = {2026},
month = sep,
note = {Submitted to AI Incident Response Sprint, an Apart Research Sprint},
howpublished = {\url{https://apartresearch.com/sprints/projects/detecting-agentic-collusion-in-public-logs-with-statistical-methods-4rdi}},
url = {https://apartresearch.com/sprints/projects/detecting-agentic-collusion-in-public-logs-with-statistical-methods-4rdi}
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