Officials say bitcoin ATMs are often used by predators who force victims to send untraceable money to scammers.

Criminals have discovered a new way to steal millions from older Americans — and Indiana lawmakers have the power to stop it.

Abstract: In this work, a GaAs-substrate-based PN-type near-infrared high-speed graphene heterojunction photodetector is proposed. The proposed photodetector is only composed of a P-type graphene ...