EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Hacker News·24d ago·5 min read
Photon-Emission-Guided Laser Fault Injection Enables RP2350 Secure Debug
TL;DR
Photon-emission microscopy successfully identified a register on the Raspberry Pi RP2350 microcontroller, enabling unauthorized access to its Secure world and recovery of sensitive data.
✦ Why It Matters
Evaluate your hardware security measures to prevent similar vulnerabilities in your systems.
Key Takeaways
- Consider physical security measures for microcontrollers in sensitive applications.
- Evaluate the effectiveness of debug-disable settings in your designs.
- Implement additional layers of security beyond runtime locks.
- Stay informed about vulnerabilities discovered in widely used hardware.
How It Works
Photon-emission microscopy detects faint near-infrared light emitted by switching transistors, allowing researchers to pinpoint the location of the DEBUGEN register. By applying laser pulses to this register, they could manipulate its state, enabling debug access despite permanent disable settings.