Federal cyber officials confirmed to Hearst Television’s National Investigative Unit that cyberattacks occurred on Election Day against a “handful” of state election websites, with the largest and most sustained attack coming against web pages in Mississippi. Late Tuesday, the Mississippi Secretary of State’s office issued a joint statement with the state’s Department of Information Technology Services stressing that no votes were affected. “We want to be extremely clear,” the statement said, “our election system is secure and has not been compromised.”Several states, including Arizona and New Jersey, had election equipment malfunctions at some precincts that delayed some voting procedures, but a senior U.S. cyber official said they saw "no evidence" of any interference in those cases. Election officials in those states attributed the outages to technical issues that they said they worked to resolve, pledging all cast ballots will be counted.Chief National Investigative Correspondent Mark Albert is on the election security beat.