alert

To alert somebody means to warn them about a potential danger.

It sends user alerts to avoid crowded locations.

Imagine a scenario where a robot makes a mistake, perhaps administering the wrong medication, or failing to alert staff during an emergency.

One of my earliest memories is seeing The Lion King and being absolutely traumatised when Mufasa spoiler alert gets killed by the stampede.

A crowd of onlookers gathered outside El Cortelon after members of the community were alerted of an ICE operation at the bar where dozens of employees and patrons were detained.