MetaGuardian: Enhancing Voice Assistant Security through Advanced Acoustic Metamaterials

We present MetaGuardian, a voice assistant VA protection system based on acoustic metamaterials. MetaGuardian can be directly integrated into the enclosures of various smart devices, effectively defending against inaudible, adversarial and laser attacks without relying on additional software...

Fooling Voice Assistants with Lasers

Interesting: Siri, Alexa, and Google Assistant are vulnerable to attacks that use lasers to inject inaudible­ -- and sometimes invisible­ -- commands into the devices and surreptitiously cause them to unlock doors, visit websites, and locate, unlock, and start vehicles, researchers report in a...

CVE-2019-13991

Embedded systems based on Arduino before Rev3 allow remote attackers to send data to LEDs directly connected to GPIO pins via a laser, because of LED photosensitivity...