A hardware researcher says they exploited a voltage fault-injection vulnerability in Nvidia's GA100 die to blow arbitrary fuses, enabling disabled features on a CMP 170HX mining card. The modified card reportedly exposes 80GB of memory, NVLink and PCIe Gen4, and activates more streaming multiprocessors than Nvidia enables on retail A100 cards, yielding roughly 1.18-1.2x higher FP16 throughput in benchmarks shown by the researcher.
blog.kate.land
· 2026-11-11
A security researcher built a custom laser fault injection platform to attack the RP2350 microcontroller, targeting Raspberry Pi's DEFCON 2024 Hacking Challenge. Using a single laser-induced fault, the researcher reportedly bypassed the chip's Secure Boot protections and extracted secret data stored in its OTP memory, then submitted the findings to Raspberry Pi.
courk.cc
· 2026-10-15
Security researchers demonstrated that Raspberry Pi's RP2350 microcontroller (revision A4) can have its permanently disabled Secure debug re-enabled through photon-emission microscopy combined with SWD-guided laser fault injection. By pinpointing the exact register controlling debug enablement and firing precisely targeted laser pulses, the team flipped two bits to restore debugger access to the chip's Secure world, later extracting a protected secret from one-time-programmable memory after a rescue reset bypassed the runtime lock.
donjon.ledger.com
· 2026-09-18
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