Officials at the Alaska Court System still don’t know who launched the April 29 cyberattack, according to a Tuesday press release from the department.

The technology department at the court system was alerted to unusual cyber activity on April 29. The release stated an external person placed malware on the court’s cybersystem, including four servers and two PCs.

On May 1 the court system disconnected from all online systems. On May 6 the system completed its investigation into the affected malware and began wiping every computer and server. On Tuesday the system was able to restore email access.

According to the release, officials do not believe personal or confidential data was extracted from the archives. Additionally, the release stated that no credit card information was accessed.

The court system is posting updates on its Facebook and Twitter accounts.