America's cyber security agencies said on Wednesday that the breach was affecting state and local governments.

Theater back only made public earlier this month, used the U.

S tech companies solar winds as a springboard to penetrate federal government networks for months, as well as critical infrastructure, entities and private companies.

Only on Wednesday to the cyber agency confirmed that state and local governments have also been targeted.

Reuters has previously reported that Pima County, Arizona, was among the victims of the wave of intrusions.

The county did not immediately return a message seeking comment Lay on Wednesday.

Senior U.

S officials and lawmakers have accused Russia of being behind the attack, a charge the Kremlin denies.

US.

President elect Joe Biden said on Tuesday he had seen no evidence the attack was under control, adding that the breach would not go unanswered once he takes office next month.