221 Real Estate subscription platform is ISO 27001 certified (formally known as ISO/IEC 27001:2013) is a specification for an information security management system (ISMS). An ISMS is a framework of policies and procedures that includes all legal, physical and technical controls involved in an organisation’s information risk management processes with the aim of keeping information secure. With ISO’s robust information security management system (ISMS) in place, you gain the additional reassurance that a full spectrum of security best practices are implemented across the organization.