CenturyLink currently maintains ISO 27001 certification for managed hosting operations and data centres in Singapore, United Kingdom, Germany, and Japan. The certificate also addresses colocation services (including physical security and facilities management) for data centres in Asia, EMEA, and North America. ISO 27001 is an International Standard providing a model for establishing, operating, monitoring, andimproving an Information Security Management System (ISMS). The ISO 27001 certificatizon demonstrates CenturyLink complies with and enforces information security processes. ISO 27001 conducts interim audits annually to support a three year renewal cycle.