Security body vs. privacy body
The CISSP is issued by ISC2, focused on information security. The CIPM is issued by the IAPP (International Association of Privacy Professionals), the dominant body for privacy certification, which also issues the CIPP (privacy law) and CIPT (privacy technology).
These are adjacent professions: security protects information; privacy governs how personal data is collected, used, and protected in line with law and policy.