Hackers have targeted water systems in several US states in a coordinated cyberattack that has caused some utilities to issue boil-water notices and switch to manual mode, taking their systems offline, according to US officials.

More than 30 water systems in Minnesota were targeted in a cyberattack, state officials revealed Tuesday.

July 28 : A "coordinated cyberattack" targeted more than 30 community water systems in the U.S. state of Minnesota on July 26 and July 27, the state's IT agency said in a…