First, it is important to note that the full name of ISO 27001 is “ISO/IEC 27001 – Information technology — Security techniques — Information security management systems — Requirements.”

It is the leading international standard focused on information security, published by the International Organization for Standardization (ISO), in partnership with the International Electrotechnical Commission (IEC). Both are leading international organizations that develop international standards.

ISO-27001 is part of a set of standards developed to handle information security: the ISO/IEC 27000 series.

What is ISO 27001? A beginner’s guide. (advisera.com)