QML-PipeGuard: Detecting Channel-Substitution Attacks on Quantum Machine Learning Pipelines in Untrusted Clouds
QML-PipeGuard detects malicious channel substitutions in quantum machine learning pipelines by monitoring measurement statistics at runtime. It distinguishes between natural hardware drift and adversarial attacks using a contract-based framework. This provides a robust, two-sided guarantee that flags integrity violations while tolerating benign noise.