Foreign hackers breach two more US water utilities, threaten safety of Colorado residents

Foreign actors hacked two Colorado water utilities' computer systems last month, changing pumping cycles, disabling alarms and altering equipment settings before operators regained control, state officials said Thursday.

The intrusions did not affect drinking water quality or treatment processes, according to Colorado Gov. Jared Polis' office. But the incidents add Colorado to a widening series of breaches in U.S. water and wastewater infrastructure.

High-profile cyberattacks have...