ISO 27001 is the leading
international standard focused on information security. It was published by the
International Organization for Standardization (ISO), in partnership with the
International Electro-technical Commission (IEC). Both are leading
international organizations that develop international standards.
For better understanding of ISO
27001 meaning, it’s important to know that this standard is part of a set of
standards developed to handle information security: the ISO/IEC 27000 series.
ISO 27001 is the most important part of that set because it describes how to
manage all aspects of security, and its full name is “ISO/IEC 27001 –
Information security, cybersecurity and privacy protection — Information
security management systems — Requirements.”
As per ISO 27001 definition, the
basic goal of an Information Security Management System (ISMS) is to protect
three aspects of information:
Confidentiality: Only authorized persons have
the right to access information.
Integrity: Only authorized persons can
change the information.
Availability: The information must be
accessible to authorized persons whenever it is needed.
There are four essential business
benefits that a company can achieve with the implementation of ISO 27001:
Comply with legal requirements – There is an ever-increasing number of laws, regulations,
and contractual requirements related to information security. The good news is
that most of them can be resolved by implementing ISO 27001. This standard
gives you the perfect methodology to comply with them all. For example, ISO
27001 can help guide the creation of a company’s security policy to be
compliant with the EU GDPR.
Achieve competitive advantage – If your company gets its ISMS ISO 27001 certified, and
your competitors do not, you may have an advantage over them in the eyes of
those customers who are sensitive about keeping their information safe.
Lower costs – The main philosophy of ISO
27001 is to prevent security incidents from happening – and every incident,
large or small, costs money. Therefore, by preventing them, your company will
save quite a lot of money. And the best thing of all – investment in ISO 27001
is far smaller than the cost savings you’ll achieve.
Better organization – Typically, fast-growing
companies don’t have the time to stop and define their processes and procedures
– as a consequence, employees often do not know what needs to be done, when,
and by whom. Implementation of an ISO 27001-compliant ISMS helps resolve such
situations, because it encourages companies to write down their main processes
(even those that are not security related), enabling them to reduce lost time
by their employees and maintain critical organizational knowledge that could
otherwise be lost when people leave the organization.
ISO 27001 is currently the most
widely adopted international information security standard and is used by
organizations all over the world. By following ISO 27001, organizations can be
confident that their ISMSes are up to date and comply with current best practices.
To do so, ISO 27001 provides a
comprehensive framework that helps organizations develop and maintain a secure
ISMS. ISO 27001 is divided into 14 phases:
The ISO 27001 controls (also known
as safeguards) are the practices to be implemented to reduce risks to
acceptable levels. Controls can be technological, organizational, physical, and
human-related.
What are the requirements for ISO
27001?
The standard requires a minimum
set of documents to be written and managed (e.g., policies, plans, records, and
other documented information) and activities to be performed (e.g., risk
assessment and treatment, internal audit, management review, etc.) for a
company to become ISO27001 compliant. To see the specific documents and records
that are considered to be mandatory for ISO 27001 implementation and
certification.
Only Certification Bodies (CBs)
that have been accredited to ISO 27001:2013 can issue ISO 27001:2013
certificates. You can check to see if a CB is accredited to a particular
standard by searching the UKAS directory of accredited CBs.
It is worth an explanation of the
global accreditation structure in order to better understand how CBs are able
to issue certificates.
CBs are the organizations that are
accredited to issue certificates to organizations. There are many CBs in
several countries and due to the international accreditation regime all
certificates issued by accredited CBs are mutually recognised globally.
In order for a CB to be accredited
to a particular ISO standard the CB must undergo an accreditation audit by an
approved National Accreditation Body (NAB). The UK’s NAB is the United Kingdom
Accreditation Service (UKAS).
UKAS is a signatory to the
European Co-Operation for Accreditation’s (EA) Multi-Lateral Agreement (MLA).
The EA MLA is recognised at the
global level by the International Accreditation Forum, which means that a
certificate issued by an accredited CB in the UK is recognised globally.
Similarly, for example, a certificate issued by a CB in the USA that is
accredited by the ANSI Accreditation Board has mutual standing in the UK.
ISO 27001 is a powerful tool for
organizations to use when creating a secure ISMS, but it’s important to
remember that ISO 27001 is a framework, not an inflexible set of rules.
That means it must be studied,
adapted and applied in the context of each organization’s unique needs and
circumstances. ISO 27001 provides best practices and guidance, but it’s up to
each organization to develop its own ISO 27001-compliant information security
system.
Organizations should find an
ISO-accredited certification body to assess their ISO 27001 compliance and
provide training on topics such as risk assessment, access control,
cryptography, physical security, communications security and more.
Organizations should also ensure
they have the resources in place to plan and implement ISO 27001-compliant
processes and controls.
Using the steps below,
organizations can ensure that they are properly prepared for ISO 27001
certification. Doing so helps protect their critical data assets and comply
with applicable laws and regulations:
Step 1. Build an ISO
27001-compliant ISMS.
Step 2. Identify risks, and
develop risk treatment strategies.
Step 3. Implement ISO
27001-compliant processes and controls.
Step 4. Have ISO-accredited
certification body assess compliance.
Step 5. Monitor your ISO 27001
compliance regularly.
By following ISO 27001,
organizations can reduce the risk of data breaches and other security
incidents, protect their critical information assets, and comply with
applicable legal and regulatory requirements.
There are several other standards
being developed in the 27000 family:
ISO/IEC 27003 — implementation
guidance;
ISO/IEC 27031 — resilience;
ISO/IEC 27005 — risk management
guidance;
ISO/IEC 27032 — cybersecurity
guidance;
ISO/IEC 27033 — network security
guidance;
ISO/IEC 27034 — application
security guidance;
ISO/IEC 27035 — incident
management guidance;
ISO/IEC 27036 — information
exchange protection guidelines for cloud and other outsourced services; and
ISO/IEC 27037 — digital evidence
handling guidelines.
There isn’t a public register of
certified companies. But certified companies will have been issued with a
certificate by their certification body so you can ask to see a copy. You
should check for the following items on the company’s ISO 27001 certificate:
There are a number of factors that
can determine how long it takes. The crucial factor is the scope of the
certification, which itself comprises things like: size of the organization,
the number and complexity of processes, number of locations and number of
employees. And then the maturity of the information security capability and
knowledge already within the organization. In general, with increasing size and
complexity comes greater time and effort. The process may also be quicker if
the organization already has experience of management system standards, such as
ISO 9001 Quality.
We would always recommend that
achieving ISO 27001 certification be treated as project and managed
accordingly. This can either be done in-house or with the support of an ISO
27001 consultant – our Sales Team can help organizations decide and also
recommend consultants with whom we have a high degree of confidence.
Well-run projects with experienced
personnel can take 2 to 3 months, although over 6 months is not uncommon. In
ideal circumstances the organization will have a fully functioning management
system in place before the audits take place. Towards of the end of the project
the organization would undergo a short Stage 1 audit – this essentially a
preparedness check. Then a Stage 2 audit is conducted, typically over several
days, and is where every requirement of the standard and the organization’s
information security controls are reviewed.
While ISO 27001 is a powerful tool
for information security, achieving compliance can be a complex process. MDR
consultants specialize in guiding organizations through the implementation of
ISO 27001. They can assist with:
By partnering with an MDR
consultant, you can gain valuable expertise and streamline the process of
achieving ISO 27001 certification.
Call us today at to speak to a
qualified consultant and learn how we can help your organization achieve ISO
27001 compliance.
2025-09-29 14:16:10
Last updated: 29 Sep 2025
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