A 15-hour outage affected three public websites, but 911, 311, bill payments and permit services remained available, and officials reported no intrusion or data loss.
The sheriff’s office said hackers hit its systems twice, forcing a suspension of some Texas Public Information Act deadlines while records work is rebuilt.
Officials said the incident affected a limited number of county systems and former sheriff’s office employees, while emergency services were not interrupted.
City says missing records, inaccessible systems and wiped devices found after an administrative transition prompted requests for state and federal help.
The attack knocked out the office’s network, moved dispatch work to Seymour police and left officers filing reports in Word documents, according to Lt. Adam Nicholson.