No, CCSS does not replace SOC 2, ISO 27001, or PCI DSS. Instead, CCSS complements these and other security frameworks by addressing the security of cryptocurrency key material and the people, processes, and technology that could affect its security.
While those frameworks address information security, governance, risk management, and compliance more broadly, CCSS focuses specifically on the security of cryptocurrency systems by protecting key material and the CCSS Trusted Environment—the people, processes, technology, and facilities that could affect the security of that key material.
Many entities implement CCSS alongside other security standards to demonstrate both general cybersecurity maturity and security controls specific to cryptocurrency systems.