US says cyber hack poses ‘grave risk’ to critical infrastructure
US officials have warned that a sophisticated hacking campaign uncovered this week poses a grave risk to the government, critical infrastructure and the private sector.
The US treasury and commerce departments were among those attacked.
The US Cybersecurity and Infrastructure Security Agency (CISA) said thwarting the attack would be highly complex and challenging.
Many suspect the Russian government is responsible, a claim the country has denied.
