What is information security?
Information is an asset which has value to an organisation and needs to be suitably protected. Information assets can be electronically stored, printed or written, transmitted by post or electronically.
Information security is the preservation of
• Confidentiality – Ensuring that information is accessible only to those authorised to have access.
• Integrity – Safeguarding the accuracy and completeness of information and processing methods
• Availability – Ensuring that authorised users have access to information and associated assets when required.
This confidentiality, integrity and availability of information may be essential to maintain your organisation's commercial position, legal compliance and profitability.
Many organisations are now being asked by their business partners to provide clear statements about their information security management position. Working to an existing standard such as ISO 27001 is the best means to achieve a comprehensive and thorough system that will satisfy regulators and business partners. Seven Nine can help you meet these challenges.
What is the scope of the standard?
Eleven areas are covered within ISO 27001. (plus the clauses 4-8 which constitute the managment system activities)
- Information Security Policy – Is there management direction and a written policy to provide support and direction for information security activities?
- Organisational Security – Is there an infrastructure to manage security within the organisation? - includes management forum and processes, third party access and outsourced arrangements
- Asset Management – Are organisational assets protected? - Includes inventory and classification
- Human Resources Security – Are the risks of human error or fraud reduced? - Includes personnel screening and T&C's, security training and incident reporting
- Physical and Environmental Security – Is unauthorised access to business premises controlled? - Includes physical security, secure areas, equipment security, maintenance and disposal.
- Communications and Operations Management - Are information processing facilities operated in a correct and secure manner – Includes operating procedures and change control, system planning, protection against malicious software, backup, media handling, information exchange, and email security.
- Access Control – Is access to business information and processes controlled on the basis of business and security requirements? - Includes user and password management, mobile users, access to applications and network services.
- Information Systems – Is security is built into information systems? - Includes development and support processes, cryptography and data validation.
- Incident management – Are events and weaknesses reported, and are events consistently managed?
- Business Continuity – Are critical business processes protected from the effects of major failures or disasters?
- Compliance – Does the firm take measures to avoid breaches of law, statutory , regulatory or contractual obligations?
What is the difference between BS 7799 and ISO 27001?
ISO 27001 is essentially the adoption of BS 7799 Part 2 as an ISO standard. Changes have only been minor. BS7799 no longer exists.
What is ISO 27002?
ISO 27002 is a development of ISO 17799, and is a set of guidelines for Information Security best practice. Firms can seek to comply with this standard, but cannot be certified against it. ISO 27001 was created in order to provide a framework that organisations can be audited and certified against. Note If you have the ISO17799 standard, you do not need to buy ISO27002...as identical, unless you want the latest updated copy.
What is certification?
Certification is achieved through a process of external audit. A number of bodies are approved for ISO 27001 audit work. As with any external certification, regular surveillance and re-certification audits are required to maintain the certification.
What is compliance?
Any firm can produce a statement of compliance with ISO 27001. The implementation of a compliant system will require much of the same work as achieving certification. Your organisation has to consider the relative commercial merits of Compliance against Certification. You must remember that this only represents your view, and that your partners may set greater store by the recognition provided by third party audit.
Do I have to gain certification for the whole organisation?
No, you can choose to limit the scope of your implementation. Be aware that most Information Security components are closely connected throughout your whole firm, so too tight a scope might be difficult to justify. You may choose to limit the scope to specific organisational units or geographical locations.
Where can I find more information about ISO 27001?
Good starting points are the ISMS International User Group www.17799.com and BSI www.bsi-global.com. If you want to order a copy of the standards, you can get one from BSI for around £200.
