Amazon is once again facing legal trouble over privacy concerns. According to Consumer Affairs, the company is under fire for allegedly allowing Alexa devices to record private conversations without ...

Recent years have witnessed a surge of headphones (including in-ear headphones) usage in works and communications. Because of the privacy-preserve property, people feel comfortable having confidential ...

This letter considers a legitimate surveillance scenario, where two suspicious nodes intend to exchange their information via one suspicious amplify-and-forward relay in two phases, the process of ...