Why Am I Seeing Double? An Investigation of Device Management Flaws in Voice Assistant Platforms. - Muslum Ozgur Ozmen; Mehmet Oguz Sakaoglu; Jackson Bizjak; Jianliang Wu 002; Antonio Bianchi; Dave (Jing) Tian; Z. Berkay Celik (Proc. Priv. Enhancing Technol., 2025)