The inspector general was asked to review cyber security after the tax returns of 3.8 million residents and 700,000 businesses were stolen from Revenue Department computer servers — representing the largest hacking of a state agency in the nation's history. Stolen data included unencrypted Social Security and bank account numbers.
Gov. Nikki Haley issued an executive order calling for the review Oct. 26, the same day she initially announced the breach.
"The governor is grateful for the work Inspector General Maley and his team have put into the report — it's exactly what she wanted when she asked him to undertake a comprehensive review of our data systems," Haley spokesman Rob Godfrey said.
Maley noted residents wouldn't tolerate another such security disaster.
The 18 chief information officers of state agencies interviewed for the interim report were "nearly unanimous that the statewide risk tolerance for another significant breach is near zero," he wrote.
He characterized regaining residents' lost trust as the most important reason for revamping the state's cyber security model.