ISO 27701, an extension of ISO 27001, focuses on privacy information management systems (PIMS). It provides a framework for organizations to establish, implement, maintain, and continually improve a robust privacy management system. 2. Link to ISO 27001: ISO 27701 is designed to complement ISO 27001, the international standard for information security management. While ISO 27001 addresses information security broadly, ISO 27701 specifically extends its principles to the protection of personal information.