Case Study: City of Sioux Falls achieves 90%+ operational savings and minimizes data-breach risk with Rubrik's Polaris Sonar

City of Sioux Falls Achieves Over 90% Operational Savings and Minimizes Risk of Data Breach with Polaris Sonar

City of Sioux Falls, a growing city of about 182,000 residents with a 28-person IT team supporting 1,200 employees, faced rapidly expanding data sprawl and limited visibility into sensitive citizen and employee records (PII, health, permits, payment data). Sensitive data discovery was manual and labor-intensive—previous searches required complex scripting, spreadsheets, and 40–80 man-hours per incident, making continuous compliance and breach prevention difficult.

By deploying Rubrik Polaris Sonar, the city automated discovery and classification across backups and dark repositories, cutting search time from 1–2 weeks to about 1 hour and delivering over 90% operational savings. Polaris Sonar was live in under 30 minutes with no extra infrastructure, provided continuous monitoring and on-demand audit access, reduced exposure risk, and freed full-time staff for higher-value work.

City of Sioux Falls

Brandon Morris

Systems Administrator