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 ...

Hackers breached Brazil’s emergency alert system and used the government’s civil defense platform to send millions of highest-level alerts across multiple regions.

Brazil's emergency alert system was compromised on Saturday, sending thousands of citizens fake messages containing the word "misanthropy." The government suspects a cyberattack after the system was ...

Imagine receiving an alert on your phone from a government agency at night, warning you about an alien attack, when you have barely made it onto your bed. That is what happened to thousands of ...