Alva Review-Courier -

OKLAHOMA CITY (AP) — Officials say a cyberattack on Oklahoma's public utilities commission mostly affected its information technology systems.

The Oklahoma Corporation Commission's website, email services and other network operations were taken offline after the hacking attack occurred early Monday, The Oklahoman reported.

The computer system remained down Thursday, Commission spokesman Matt Skinner said. He said field inspectors and staff will continue their duties manually. Digital reports won't be filed until the system is back online.

"They're having to get back to pencil and paper or are using personal laptops to enter information," Skinner said. "We're still getting business done, but there are certain things we can't do without the system."

Office of Management and Enterprise Services spokeswoman Shelley Zumwal said the State CyberCommand and OMES staff restarted the systems after detecting the hack. She said she can't disclose whether the office knows who was behind the attack due to the ongoing investigation.

"This is an ongoing investigation and, due to security constraints, we are limited in what we can say at this time," Zumwal said.

Zumwal said no sensitive information from the Corporation Commission or citizens were compromised.

The hack comes several years after the state launched the Oklahoma Cyber Command. It monitors the state's data and computer infrastructure against unauthorized data use, disclosure, modification, damage and loss.

Cyber Command aims to prevent cybercrimes, identify threats as quickly as possible and control exposures, respond to incidents and restore public services.

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Information from: The Oklahoman, http://www.newsok.com