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": "ccc-8a3e490c-30a5-46a6-ab4f-45ef3b23b1a1",
  "title": "Compromising online accounts by cracking voicemail systems",
  "presenters": [
    "Martin Vigo"
  ],
  "event": "35C3: Refreshing Memories",
  "year": "2018",
  "source_url": "https://media.ccc.de/v/35c3-9383-compromising_online_accounts_by_cracking_voicemail_systems",
  "source_kind": "CCC recording catalog",
  "source_file": "ccc-35c3.json",
  "rights": "Metadata and source links only; abstracts, biographies, transcripts and media not republished",
  "delivery_status": "Not independently verified",
  "title_status": "source supplied",
  "presenter_status": "source supplied",
  "media": [
    {
      "kind": "recording page",
      "url": "https://media.ccc.de/v/35c3-9383-compromising_online_accounts_by_cracking_voicemail_systems"
    }
  ],
  "provenance": [
    {
      "event": "35c3",
      "title": "35C3: Refreshing Memories",
      "source": "https://api.media.ccc.de/public/conferences/35c3",
      "file": "ccc-35c3.json",
      "sha256": "25de3aee7acbd86f452db36f79efe55fd4db1f53a39080dac198d7c08ed7aebe",
      "checked": "2026-10-16T03:45:11Z",
      "source_records": 167
    }
  ],
  "source_guid": "8a3e490c-30a5-46a6-ab4f-45ef3b23b1a1",
  "source_event_api": "https://api.media.ccc.de/public/events/8a3e490c-30a5-46a6-ab4f-45ef3b23b1a1",
  "date": "2018-12-27T00:00:00.000+01:00",
  "duration_seconds": 2521,
  "language": "eng",
  "tags": [
    "35c3",
    "9383",
    "Security"
  ],
  "event_acronym": "35c3",
  "source_schedule_url": ""
}