{
  "id": 9170088,
  "title": "Researcher Drops BigDiskBuster Zero-Day PoC That Blocks Microsoft Defender Updates",
  "url": "https://urgent.news/2026/09/22/researcher-drops-bigdiskbuster-zero-day-poc-that-blocks-microsoft",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-22T16:14:04.000Z",
  "source": {
    "name": "The Hacker News",
    "slug": "the-hacker-news",
    "url": "https://thehackernews.com/2026/09/researcher-drops-bigdiskbuster-zero-day.html"
  },
  "original_language": "en",
  "account": null,
  "summary": "A zero-day proof-of-concept tool that stops Microsoft Defender from installing platform and signature updates by filling all available disk space was published on GitHub on September 19. The tool, called BigDiskBuster, has no patch, no CVE, and no Microsoft advisory. Its author, Abdelhamid Naceri, is a former Microsoft security researcher whose earlier Defender exploits were used in",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}