{
  "id": 8555186,
  "title": "Photon-Emission-Guided Laser Fault Injection Enables RP2350 Secure Debug",
  "url": "https://urgent.news/2026/09/18/photon-emission-guided-laser-fault-injection-enables-rp2350-secure-8555186",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-18T16:54:18.000Z",
  "source": {
    "name": "Hacker News Best",
    "slug": "hacker-news-best",
    "url": "https://donjon.ledger.com/blog/rp2350-secure-debug-laser-fault-injection/"
  },
  "original_language": "en",
  "account": "Photon-emission microscopy (PEM) was used to locate a specific register within the raspberry pi microcontroller. By directing laser pulses at two adjacent positions, the debugger access was restored to the chip's secure world, allowing researchers to recover a secret stored in one-time-programmable memory. This attack required physical access, destructive preparation, and expensive laboratory equipment. The RP2350 microcontroller, used in Raspberry Pi devices, contains hardware security features including one-time-programmable memory for storing the permanent security configuration and boot public key fingerprints. These bits can only be flipped once, ensuring the security remains intact throughout the chip's lifetime.",
  "summary": "Article URL: https://donjon.ledger.com/blog/rp2350-secure-debug-laser-fault-injection/ Comments URL: https://news.ycombinator.com/item?id=49757050 Points: 214 # Comments: 85",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 2,
    "also_reported_by": [
      {
        "outlet": "Hacker News",
        "title": "Photon-Emission-Guided Laser Fault Injection Enables RP2350 Secure Debug",
        "url": "https://urgent.news/2026/09/18/photon-emission-guided-laser-fault-injection-enables-rp2350-secure",
        "published": "2026-09-18T16:54:18.000Z"
      }
    ]
  },
  "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."
}