This document is a report that presents the Data Security Index for 2025, ranking all 50 states in the United States based on their data safety scores. The report outlines the methodology used to assess the safety of private data across states, focusing on three key metrics: cybercrime rate per capita, data breaches per capita, and data protection laws score. Each metric contributes to the final data safety score, which is calculated as a weighted average of the three metrics. The report details the sources of data for these metrics, including the FBI's Internet Crime report, government data breach notifications, and state privacy legislation trackers. The final scores are normalized to a scale of 50 to 100, allowing for a comparative analysis of states. The report concludes with a ranking of states from highest to lowest data safety score, providing insights into the relative safety of private data across the nation.