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

Brazilians wake to fake alien attack alerts on 19 June after hackers slipped through a backdoor the FCC has spent years studying Paweł/Pixabay A hacker who breached Brazil's national emergency alert ...

A test emergency alert dispatched to nearly every smartphone in the UK on Sunday, September 7 has triggered wild fears. A message will be delivered to almost every active iPhone and Android handset ...