Securing Cloud Databases: Best Practices with Clickhouse and Wiz

This report examines the DeepSeek ClickHouse database exposure, attributing the leak to misconfiguration (publicly accessible instance, no TLS, and an unauthenticated default user). It reviews ClickHouse's out-of-the-box security controls (authentication, RBAC, network settings, encryption, secret management, auditing), recent hardening changes, and recommends operational best practices plus continuous monitoring via the Wiz cloud security platform to detect and remediate risky configurations before data exposure occurs.