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    "story_id": "mp-2026-11-06-014",
    "source_story_id": "tmp-story-sensorguard-rv",
    "edition_id": "mp-2026-11-06-morning-0119",
    "edition_url": "https://themachinepress.com/edition/2026-11-06",
    "position": 14,
    "story_type": "dispatch",
    "section": "safety-security",
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    "headline": "The Sensor Reading Skips Untrusted Memory",
    "slug": "the-sensor-reading-skips-untrusted-memory",
    "dek": "SensorGuard-RV authenticates samples in fixed-function hardware and decrypts them directly into a RISC-V register.",
    "summary": "SensorGuard-RV authenticates samples in fixed-function hardware and decrypts them directly into a RISC-V register.",
    "body_text": "A write-once ownership switch hands the sensor to a controller whose key is inaccessible to software. A new instruction verifies tags and rejects replays, including across resets, before placing data in a CPU register. On an FPGA implementation with an accelerometer, a protected sample arrives in 51.9 microseconds and the loop sustains 19,015 transactions per second, 5.3 percent above the software-driven SPI baseline. Added logic and estimated power remain material tradeoffs.",
    "why_it_matters": "SensorGuard-RV authenticates samples in fixed-function hardware and decrypts them directly into a RISC-V register.",
    "limitations": [
      "Added logic and estimated power remain material tradeoffs."
    ],
    "importance": 8,
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    "first_published_at": "2026-11-06T09:00:00.000-05:00",
    "modified_at": "2026-11-06T09:00:00.000-05:00",
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        "text": "SensorGuard-RV authenticates samples in fixed-function hardware and decrypts them directly into a RISC-V register.",
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        "qualification": "Added logic and estimated power remain material tradeoffs."
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    "source_ids": [
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    "tags": [
      "RISC-V",
      "sensor security",
      "embedded systems"
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    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-11-06-014",
      "title": "arXiv preprint 2611.08380, original v1",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2611.08380v1",
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      "published_at": "2026-11-05T12:57:49.000-05:00",
      "accessed_at": "2026-11-06T08:21:03.209-05:00",
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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": "The Sensor Reading Skips Untrusted Memory",
    "publisher": "The Machine Press",
    "published_at": "2026-11-06T09:00:00.000-05:00",
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