Fault Injection Attacks on Machine Learning-based Quantum Computer Readout Error Correction

• URL: http://arxiv.org/abs/2512.20077v1
• Date: Tue, 23 Dec 2025 06:19:14 GMT
• Title: Fault Injection Attacks on Machine Learning-based Quantum Computer Readout Error Correction
• Authors: Anthony Etim, Jakub Szefer,
• Abstract summary: This paper is the first to analyze the susceptibility of machine-learning (ML) classifiers to physical fault-injection.<n>It shows that early-layers demonstrate higher rates of misprediction when faults are triggered in them, whereas later layers have smaller misprediction rates.<n>Results motivate treating ML-based quantum computer readout and readout correction as a security-critical component of quantum systems.
• Score: 9.845065013862325
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Machine-learning (ML) classifiers are increasingly used in quantum computing systems to improve multi-qubit readout discrimination and to mitigate correlated readout errors. These ML classifiers are an integral component of today's quantum computer's control and readout stacks. This paper is the first to analyze the susceptibility of such ML classifiers to physical fault-injection which can result in generation of incorrect readout results from quantum computers. The study targets 5-qubit (thus 32-class) readout error-correction model. Using the ChipWhisperer Husky for physical voltage glitching, this work leverages an automated algorithm for scanning the fault injection parameter search space to find various successful faults in all the layers of the target ML model. Across repeated trials, this work finds that fault susceptibility is strongly layer-dependent: early-layers demonstrate higher rates of misprediction when faults are triggered in them, whereas later layers have smaller misprediction rates. This work further characterizes the resulting readout failures at the bitstring level using Hamming-distance and per-bit flip statistics, showing that single-shot glitches can induce structured readout corruption rather than purely random noise. These results motivate treating ML-based quantum computer readout and readout correction as a security-critical component of quantum systems and highlight the need for lightweight, deployment-friendly fault detection and redundancy mechanisms in the quantum computer readout pipelines.

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