01▲A Non-Line-of-Sight, Multi-Modality-based Side-Channel IP Theft Attack on Additive Manufacturing Using Dual Smartphones arxiv.org Two smartphones do off-axis acoustic plus magnetic G-code theft from 3D printers, because confidentiality is optional.acousticsadditive-manufacturingarxivcryptanalysismagneticsprivacysecurityside-channel7 pts/deadlock7/12 days ago/3 comments