Hacktivist are increasingly turning towards targeting operational technology in critical infrastructure systems.

The group has put Latin American governments, politicians and corporations on notice that it can expose their secrets.

Researchers say a growing number of internet-connected devices linked to critical infrastructure organizations don't have basic protections.

KillNet, the group that claimed responsibility, has launched a series of attacks around the world on perceived enemies of Russia.

The request came as police there investigate the hack of the Nauru Police Force.