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What is information security management systems?


 Information security management system definition. 

Information Security Management System (ISMS) is a systematic approach process for managing companies’ sensitive information so that it remains secure. This a framework of policies and procedures that includes people, all legal, physical, and technical controls involved in an organization's information risk management processes.
As per ISO 27001 documentation & guidance, this has been developed framework for establishing, implementing, operating, monitoring, reviewing, maintaining and improving an information security management system. The Information Security Management system ensures the confidentiality, integrity, and availability of information by applying process and gives confidence to interested parties that risk is adequately managed. When an organization implements ISO 27001 it ensures handling of overall business risks implementing of security controls as per the requirement of the organization, which improves the employee’s productivity and corporate image. Its management process based on systematic business risk approach which establish, implement, operate, monitor, review, maintain and improve information security technology. This standard is designed to ensure the selection of adequate and balanced security controls and this is the only auditable international standard.
This international standard is for internal and external parties to assess the organization’s ability to meet the organization’s own security requirement. ISO/IEC 27000 describe the overview and the vocabulary of information security management systems referring ISMS family of standard which includes ISO/IEC 27003(2), ISO /IEC 27004(3) and ISO /IEC 27005(1).  
What are those risk-based approach which ISO 2701 uses?
ISO 27001 Risk-based approach list :
1.    Defining a security policy.
2.    Defining the scope of the ISMS.
3.    Conducting a risk assessment.
4.    Managing identified risks.
5.    Focus on control objectives and ensure the implementation of those controls.
6.    Making a statement of applicability.
It includes details for documentation of findings, leadership & management responsibilities, internal audits, continual improvement, and corrective and preventive action. It requires good cooperation among all the departments of the organization.
This standard does not command specific information security controls, but it has some checklist of controls that should be measured as a practice, ISO/IEC 27002:2002 It’s a set of information security control objectives and outline a set of acceptable good practice security controls.

What is ISO/IEC 27002 Control objectives?

·  This ISO/IEC 27002 gives recommendations for information security management for use by those who are accountable for initiating, implementing, or maintaining the security for their organization.
· The control initiated to provide a common basis for developing organizational security standards and effective security management practices to provide confidence in inter-organizational dealings.
·  Suggested or recommended standard should be selected and used in accordance with applicable law and regulations.  
Other standards being developed in the 27000 family are:
·    27003 –It’s an implementation guide.
·  27004 – This is an information security management measurement standard suggesting system of measurement to help improve the efficiency of an ISMS.
·  27005 – This is an information security technology risk management standard. ISO/IEC 27005 provides information security risk management guidance, including advice on risk assessment, risk treatment, risk acceptance, risk communication, risk monitoring, and risk review.
·   27006 – This international standard specifies requirements and guidance for the bodies who providing certification of ISMS, additionally to the requirement contained within ISO/IEC 1702 and ISO/IEC 2701. Its primarily intended to support the accreditation of certification bodies providing ISMS certification.  certification or registration process for accredited ISMS certification or registration bodies. (Published in 2007)
·    27007 – This specifies  ISMS auditing guidelines.



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