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-27-3931ccc7bcaff752",
  "title": "Change the World, cDc Style: Cow tips from the first 35 years",
  "presenters": [
    "Joseph Menn",
    "Peiter Mudge Zatko",
    "Chris Dildog Rioux",
    "Deth Vegetable",
    "Omega"
  ],
  "event": "DEF CON 27",
  "year": "2019",
  "source_url": "https://infocondb.org/con/def-con/def-con-27/change-the-world-cdc-style-cow-tips-from-the-first-35-years",
  "source_kind": "Independent InfoconDB index",
  "source_file": "infocondb-def-con-27.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": [
    {
      "file": "infocondb-def-con-27.html",
      "url": "https://infocondb.org/con/def-con/def-con-27/",
      "source_kind": "secondary independent index",
      "sha256": "d7d41925369eee87b799632106b2ac7efbcaed6ab17ae9895221c48c193b7920",
      "checked": "2026-10-16T03:48:27Z"
    },
    {
      "raw_title": "Change the World, cDc Style: Cow tips from the first 35 years",
      "raw_agenda": "09.08.2019",
      "date_conflict": false,
      "url": "https://doi.org/10.5281/zenodo.15989593",
      "file": "speaker_infosec.csv",
      "rows": [
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      ],
      "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": "2019-08-09",
  "research_credit_rows": [
    {
      "presenter": "Joseph Menn",
      "role": "Author",
      "affiliation": "Cult of the Dead Cow: How the Original Hacking Supergroup Might Just Save the World (PublicAffairs",
      "row": 2320
    },
    {
      "presenter": "Peiter Mudge Zatko",
      "role": "head of security",
      "affiliation": "Twitter",
      "row": 2321
    },
    {
      "presenter": "Chris Dildog Rioux",
      "role": "founder",
      "affiliation": "Veracode",
      "row": 2322
    },
    {
      "presenter": "Deth Vegetable",
      "role": "?",
      "affiliation": "?",
      "row": 2323
    },
    {
      "presenter": "Omega",
      "role": "?",
      "affiliation": "?",
      "row": 2324
    }
  ]
}