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    "story_id": "mp-2026-08-23-015",
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    "position": 17,
    "story_type": "ticker",
    "section": "safety-security",
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    "headline": "One Altered Sentence Fooled Listeners 77 Percent of the Time",
    "slug": "one-altered-sentence-fooled-listeners-77-percent-of-the-time",
    "dek": "In a study of 82 IT professionals, partial audio spoofs were harder to localize than fully synthetic speech.",
    "summary": "In a study of 82 IT professionals, partial audio spoofs were harder to localize than fully synthetic speech.",
    "body_text": "Strict accuracy for locating the altered sentence fell to 9 percent, and listeners marked the synthetic segment as genuine 77 percent of the time. Humans and six pretrained detectors failed in different ways, supporting procedural verification and provenance rather than listening alone.",
    "why_it_matters": "In a study of 82 IT professionals, partial audio spoofs were harder to localize than fully synthetic speech.",
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    "importance": 8,
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    "first_published_at": "2026-08-23T09:00:00.000-04:00",
    "modified_at": "2026-08-23T09:00:00.000-04:00",
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    "source_ids": [
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    "tags": [
      "audio deepfakes",
      "speech synthesis",
      "provenance"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-08-23-017",
      "title": "arXiv preprint 2608.19959",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.19959",
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      "published_at": "2026-08-20T08:27:37.000-04:00",
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  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "One Altered Sentence Fooled Listeners 77 Percent of the Time",
    "publisher": "The Machine Press",
    "published_at": "2026-08-23T09:00:00.000-04:00",
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