Tech Xplore: Research hack reveals call security risk in smartphones

Tech Xplore: Research hack reveals call security risk in smartphones. “Advanced smartphone features attract users who want more from their devices, especially in health and entertainment areas, but do these features create a security risk when making or receiving actual calls?…The researchers’ malware, called EarSpy, used machine learning algorithms to filter a surprising amount of caller information from ear speaker vibration data recorded by an Android smartphone’s own motion sensors—and did so without overcoming any safeguards or needing user permissions.