AUGUSTA, Maine — The Secretary of State’s Office said Thursday that it appears no personal information was compromised during a potential security breach of Maine’s Central Voter Registration database.

The apparent breach was the result of malware — or malicious computer software — found on a workstation computer in the town clerk’s office in the northern Penobscot County town of Millinocket.

“I want to update the public with our initial findings and assure all Mainers that appropriate action has been, and will continue to be, taken to protect all personal information located in the Central Voter Registration,” Secretary of State Charlie Summers said in a statement.

Maine officials were notified Wednesday afternoon of the issue following a routine security check by the cybersecurity monitoring arm of the U.S. Department of Homeland Security.

That Central Voter Registration database, which is accessible by all town clerks, contains names, addresses, dates of birth and other personal information but does not include Social Security numbers.

Attempts to reach town officials in Millinocket on Thursday afternoon were unsuccessful.

Summers said that, although it appears no personal information was compromised, his office would continue to investigate.

“We will continue to look into this matter and try to determine how this breach occurred,” he said.

That investigation will include a forensic examination of the affected computer by the Maine State Police Computer Crimes Unit.

“Once I receive a final analysis of that examination, I will be in a better position to offer more information,” Summers said.