A data leak exposes the operations of the Chinese private firm TopSec, which provides Censorship-as-a-Service

**Executive Summary:** SentinelLabs-analyzed leaked data from Chinese cybersecurity firm TopSec reveals infrastructure management code, work logs, hardcoded credentials, and evidence the company provided censorship-as-a-service (including the Sparta content-monitoring tool) to government and state-affiliated customers, raising significant privacy, operational, and security risks for TopSec and its clients.