ISO 27001, sometimes referred to as ISO/IEC 27001 is an international standard that addresses organizational information security. Issued in 2005 and with a second revision in 2013, the ISO 27001 standard describes the Information Security Management Systems requirements for global controls and safeguards meant to preserve data privacy, protect sensitive information, optimize the organizational cybersecurity posture, and reduce business risk across all vital areas.

Source: Heimdal Security Blog