CONFERENCE METADATA — incomplete historical coverage; source presence is not proof of delivery.
Research dataset: Lukas Walter, Clemens Sauerwein, Daniel Woods, InfoSec.pptx, https://doi.org/10.5281/zenodo.15989593, CC BY 4.0 https://creativecommons.org/licenses/by/4.0/. Changes: metadata extraction, exact-match reconciliation and uncertainty flags. No endorsement implied.

{
  "id": "defcon-index-25-1502668bd21166ea",
  "title": "macOS/iOS Kernel Debugging and Heap Feng Shui",
  "presenters": [
    "Min(Spark) Zheng",
    "Xiangyu Liu"
  ],
  "event": "DEF CON 25",
  "year": "2017",
  "source_url": "https://infocondb.org/con/def-con/def-con-25/macosios-kernel-debugging-and-heap-feng-shui",
  "source_kind": "Independent InfoconDB index",
  "source_file": "infocondb-def-con-25.html",
  "rights": "Metadata and source links only; abstracts, biographies, transcripts and media not republished",
  "delivery_status": "Not independently verified",
  "title_status": "source supplied",
  "presenter_status": "research dataset; independent index title match",
  "media": [

  ],
  "provenance": [
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      "file": "infocondb-def-con-25.html",
      "url": "https://infocondb.org/con/def-con/def-con-25/",
      "source_kind": "secondary independent index",
      "sha256": "3983268a78c882302f82e2ee1846a8afd40a7c53c4b1f824e9dfd3491a62d0b4",
      "checked": "2026-10-16T03:48:32Z"
    },
    {
      "raw_title": "macOS/iOS Kernel Debugging and Heap Feng Shui",
      "raw_agenda": "28.07.2017",
      "date_conflict": false,
      "url": "https://doi.org/10.5281/zenodo.15989593",
      "file": "speaker_infosec.csv",
      "rows": [
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        3668
      ],
      "sha256": "e47480bc376a20292a4f6fd990be7b687f43ff0bfb861267c5533cebf3114d46",
      "attribution": "Lukas Walter, Clemens Sauerwein, Daniel Woods; InfoSec.pptx dataset; CC-BY-4.0; extracted metadata, omitted abstracts and automated classifications",
      "license": "https://creativecommons.org/licenses/by/4.0/"
    }
  ],
  "date": "2017-07-28",
  "research_credit_rows": [
    {
      "presenter": "Min(Spark) Zheng",
      "role": "Security Expert @ Alibaba Inc. Ph.D of CUHK.",
      "affiliation": "?",
      "row": 3667
    },
    {
      "presenter": "Xiangyu Liu",
      "role": "Security Engineer",
      "affiliation": "Alibaba Inc. Ph.D of CUHK.",
      "row": 3668
    }
  ]
}