A hoax 'alien invasion' alert in Brazil caused panic and amusement, revealing vulnerabilities in emergency systems. Authorities are investigating the breach.

Brazilians woke up today to a strange alert sent to their phones, the emergency alert was purported to be sent from aliens, warning them that ...

A hacker who breached Brazil's national emergency alert system and pushed fake 'alien attack' warnings to millions of phones overnight has handed cybersecurity experts a working demonstration of a ...

An international research team led by the University of Vienna has produced, for the first time, high-resolution global maps of invasion risk for thousands of alien plant species under current ...