A spokesperson for the agency said they had detected an "active attack" targeting their network.

In an international crackdown involving Houston authorities, 39 domains operated by a Pakistan-based group known as Saim Raza or HeartSender were shut down for selling hacking and fraud tools.

Pearland ISD has reported that cybersecurity experts are investigating "unusual activity" in its computer network that is impacting some operations.

The DOJ seized 39 domains and associated servers operated by Saim Raza, the group more commonly known as the online marketplace HeartSender.