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-29-b846193c199635e7",
  "title": "Ransomware's Big Year - from nuisance to \"scourge\"? - DEF CON Policy Panel",
  "presenters": [

  ],
  "event": "DEF CON 29",
  "year": "2021",
  "source_url": "https://infocondb.org/con/def-con/def-con-29/ransomwares-big-year-from-nuisance-to-scourge-def-con-policy-panel",
  "source_kind": "Independent InfoconDB index",
  "source_file": "infocondb-def-con-29.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": "unknown in imported source",
  "media": [

  ],
  "provenance": [
    {
      "file": "infocondb-def-con-29.html",
      "url": "https://infocondb.org/con/def-con/def-con-29/",
      "source_kind": "secondary independent index",
      "sha256": "287918024a3ef9a669b1ee2517c87afa8a3f35beb4304381fe459055da2aa898",
      "checked": "2026-10-16T03:48:21Z"
    }
  ]
}