Byron Tau for WSJ:

he Department of Homeland Security said it is “deeply concerned” about what appears to be an attempted breach of Georgia’s secretary of state computer systems that has been tracked to a federal internet address.

In a response to Georgia sent Thursday night, the department said it had tracked the IP address to part of the U.S. Customs and Border Protection computer network—a part of Homeland Security that isn’t typically involved in cybersecurity efforts.

Georgia Secretary of State Brian Kemp this week said the state had discovered an unsuccessful attempt to breach the firewall of computer systems that house sensitive data, such as voter registration and corporate information. The attempt occurred on Nov. 15, Mr. Kemp wrote in a letter.