The county's Department of Emergency Communications announced it restored the core functionality of its computer-aided systems Tuesday afternoon following the January 21 attack.
County officials say they have determined the ransomware group Akira was involved in the 911 communication center outage.
Dispatchers in the interim relied on backup systems to document and dispatch calls for service. However, officials say at no point were 911 call taking abilities interrupted.
As of Tuesday, a timeline for full restoration had not been established, officials said.