Twitter exempts some cause-based messages from political ad ban

Twitter said Friday its ban on political ads will exempt caused-based messages on topics related to social or environmental issues.

techxplore.com 2019-11-16

People puzzled by peculiar texts, and no one can say why

If you woke up Thursday to a weird text that seemed totally out of place, you arent alone. A mysterious wave of missives swept Americas phones overnight, delivering largely unintelligible messages from friends, family and ...

techxplore.com 2019-11-08

How voice assistants follow inaudible commands

An attack against speech recognition systems with manipulated audio files used to work only via a data interface. Now, all it takes is playing the secret messages via loudspeakers.

techxplore.com 2019-10-25