Guam's only public hospital is opening up about a security threat to their network discovered earlier this month.

On Tuesday, Guam Memorial Hospital Authority's legal counsel, Jeremiah Luther spoke to KUAM News on what they are calling suspected malicious behavior.

"Approximately March 2nd, our IT team determined that there was a credible threat to the network," he said.

Multiple findings of unauthorized access to GMH's internal network led hospital officials to reach out to Guam Homeland Security and the FBI.

"A flaw in the network security created a serious issue within our network that could have exposed every aspect of our network to an attack," Luther said. "Or malware or ransomware or deletion or damage to the network as well."

The network breach comes months after the Tamuning facility beefed up security after a bomb threat forced a lockdown.

GMH Public Information Officer Cindy Hansen also spoke with KUAM.

"They are actually training all the time. We have an agreement with the Department of Corrections," she said. "They include our team in their training and workshops and so forth. They conduct their own in-house all the time to make sure that they’re ready for anything that happens. So this is an entirely different event. This was our cybersystems."

An IT employee noticed a flaw in network security, which prompted the hospital to take the network offline, reinforce security and prevent a potential cyberattack.

KUAM asked if ransomware or malware was also suspected in the attack.

Luther responded, "No, not initially no."

"We can’t talk much about that because there is an ongoing investigation with the FBI so there are going to be certain things we won’t be able to say," Hansen said.

At least one person was identified as a potential suspect, according to the hospital. There's no word if charges will be filed against the unnamed person.

Hospital officials however are keeping mum on those specifics, too.

"I can say that we have provided the FBI with information and we are going to let that regarding individuals that we suspect," Luther said. "But whomever that person is, that person is entitled to the benefit of an investigation." But he assures no patient, employee or financial records have been compromised.

And as a security measure, the hospital changed all its firewalls and will have homeland security check what other areas need to be enhanced.

"Once we have the system back up and 100 percent operable, Department of Homeland Security is going to come back and do another assessment, specifically looking for areas where we can beef up so that this can never happen again," Hansen said.