Systems containing voter registration information from two counties — one in Indiana and one in California — were successfully hacked by Russian state actors, according to a report from ABC News.
The Russian state actors since at least September have conducted a campaign against a wide variety of targets, including dozens of government and aviation networks, the report said.
The two counties where voter registration information was accessed was not disclosed.
A new Homeland Security Alert states, "as this recent malicious activity has been directed at [state, local, territorial and tribal (SLTT)] government networks, there may be some risk to elections information housed on (those) government networks."
The FBI and Cybersecurity and Infrastructure Security Agency (CISA) have seen no evidence that data has been altered, however, FBI and Homeland Security officials expressed concern that Russia "may be seeking access to obtain future disruption options, to influence U.S. policies and actions, or to delegitimize SLTT government entities," according to ABC News.
There is no evidence to suggest that the Russians have intentionally disrupted any aviation, education, elections or government operations or that integrity of elections data has been compromised, both the FBI and CISA said.
Sources also told ABC News that Iran is also engaging in efforts to penetrate elections-related systems.
