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ISO/IEC 27000 family

ISO/IEC 27000 family is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand ISO/IEC 27000 family rather than just read about it. In short: The ISO/IEC 27000 family (also known as the 'ISMS Family of Standards', 'ISO27K', or 'ISO 27000 series') comprises information security standards published jointly by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). The series provides best practice recommendations on information security management—the management of information risks through informati…

Key takeaways

  • ISO/IEC 27000 family belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect ISO/IEC 27000 family to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of ISO/IEC 27000 family from memory before moving on to harder problems.

Reference excerpt

The ISO/IEC 27000 family (also known as the 'ISMS Family of Standards', 'ISO27K', or 'ISO 27000 series') comprises information security standards published jointly by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). The series provides best practice recommendations on information security management—the management of information risks through information security controls—within the context of an overall information security management system (ISMS), similar in design to management systems for quality assurance (the ISO 9000 series), environmental protection (the ISO 14000 series) and other management systems. The series is deliberately broad in scope, covering more than just privacy, confidentiality and IT security issues. It is applicable to organizations of all shapes and sizes. All organizations are encouraged to assess their information risks, then treat them (typically using information security controls) according to their needs, using the guidance and suggestions where relevant. Given the dynamic nature of information risk and security, the ISMS concept incorporates continuous feedback and improvement activities to respond to changes in the threats, vulnerabilities or impacts of Incidents. The standards are the product of ISO/IEC JTC 1 (Joint Technical Committee 1) SC 27 (Subcommittee 27), an international body that meets in person (face-to-face or virtually) twice a year. The ISO/IEC standards are sold directly by ISO, mostly in English, French and Chinese. Sales outlets associated with various national standards bodies also sell faithfully translated versions in several languages.

Early history Many people and organisations are involved in the development and maintenance of the ISO27K standards. The first standard in this series was ISO/IEC 17799:2000; this was a fast-tracking of the existing British standard BS 7799 part 1:1999. The initial release of BS 7799 was based, in part, on an information security policy manual developed by the Royal Dutch/Shell Group in the late 1980s and early 1990s. In 1993, what was then the Department of Trade and Industry (United Kingdom) convened a team to review existing practice in information security, with the goal of producing a standards document. In 1995, the BSI Group published the first version of BS 7799. One of the principal authors of BS 7799 recalls that, at the beginning of 1993, "The DTI decided to quickly assemble a group of industry representatives from seven different sectors: Shell ([David Lacey] and Les Riley), BOC Group (Neil Twist), BT (Dennis Willets), Marks & Spencer (Steve Jones), Midland Bank (Richard Hackworth), Lloyds Bank, Nationwide (John Bowles) and Unilever (Rolf Moulton)." David Lacey credits the late Donn B. Parker as having the "original idea of establishing a set of information security controls", and with producing a document containing a "collection of around a hundred baseline controls" by the late 1980s for "the I-4 Information Security circle which he conceived and founded.

Publications

The published ISO27K standards related to "information security, cybersecurity and privacy protection" are:

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with ISO/IEC 27000 family

Start with the simplest possible case. Write down what ISO/IEC 27000 family claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to ISO/IEC 27000 family before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about ISO/IEC 27000 family ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of ISO/IEC 27000 family

In research
ISO/IEC 27000 family appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses ISO/IEC 27000 family in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
ISO/IEC 27000 family is common in secondary-school and first-year university syllabi. It links to neighbouring topics ISO/IEC 27000 family, ISO/IEC standards, Information technology management, so understanding it makes those chapters shorter.
In everyday life
Look for ISO/IEC 27000 family outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study ISO/IEC 27000 family in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what ISO/IEC 27000 family means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain ISO/IEC 27000 family out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is ISO/IEC 27000 family in simple terms?

The ISO/IEC 27000 family (also known as the 'ISMS Family of Standards', 'ISO27K', or 'ISO 27000 series') comprises information security standards published jointly by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). The series provide…

Why does ISO/IEC 27000 family matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study ISO/IEC 27000 family?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on ISO/IEC 27000 family.

Tags

  • ISO/IEC 27000 family
  • ISO/IEC standards
  • Information technology management

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