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-1-22ab44339d53ed8c",
  "title": "Virus developments and concerns",
  "presenters": [
    "Mark Ludwig"
  ],
  "event": "DEF CON 1",
  "year": "1993",
  "source_url": "https://infocondb.org/con/def-con/def-con-1/virus-developments-and-concerns",
  "source_kind": "Independent InfoconDB index",
  "source_file": "infocondb-def-con-1.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": "Independent source talk-specific credit; identity not inferred",
  "media": [

  ],
  "provenance": [
    {
      "file": "infocondb-def-con-1.html",
      "url": "https://infocondb.org/con/def-con/def-con-1/",
      "source_kind": "secondary independent index",
      "sha256": "061fbcf4fb5eb67056ab9029409da542062780837d186e7cf4fb5fd5059de07f",
      "checked": "2026-10-16T03:49:32Z"
    },
    {
      "record_id": "defcon-index-1-22ab44339d53ed8c",
      "file": "detail-b4dab62488912b50c705.html",
      "url": "https://infocondb.org/con/def-con/def-con-1/virus-developments-and-concerns",
      "sha256": "1c69380cec2b294bed5b16379bd240cf56069929d920748f9e14681ef59369e6",
      "checked": "2026-10-16T04:00:44Z"
    }
  ],
  "presenter_profiles": [
    {
      "name": "Mark Ludwig",
      "source_url": "https://infocondb.org/presenter/mark-ludwig"
    }
  ]
}