TimeRFT: Stimulating Generalizable Time Series Forecasting for TSFMs via Reinforcement Finetuning

This collection of arXiv papers highlights several advances with security and safety implications across wireless, radar, ML, and medical-device contexts. Most notable is a proof-of-concept blind angular-spoofing method for uplink MIMO that uses a blind analog precoder to manipulate perceived angle-of-arrival/departure (near-perfect spoofing achievable without channel-gain knowledge), trading off communication rate—direct relevance to location-privacy attacks and spoofing defenses. Related wireless/PHY work includes proposals to adopt chirp-based subcarriers for 6G (improving Doppler/ISACrob-