ISO 27001 is an international standard published by the International Standardization Organisation (ISO) and explains how to manage information security in a company. The most recent revision of this standard was published in 2013 and the full title is ISO / IEC 27001: 2013. The first version of the standard was published in 2005 and was originally developed based on BS 7799-2, an English standard.

ISO 27001 can be applied in any organization for private or public, small or large-scale enterprises, not profit- or profit-oriented. It is written by the world's best experts in the field of information security and provides a sustainable methodology for the implementation of information security management in an organization. It also provides for the certification of companies, which means that an independent certification body confirms that an organization complies with ISO 27001 information security.

ISO 27001 has become the world's most popular information security standard. Many companies have received ISO 27001 information security certification.

The focus of ISO 27001 is to protect the confidentiality, integrity and availability of information in an enterprise. This is done by identifying what the information may be and then defining what needs to be done to prevent such problems from occurring. This means that risk assessment is performed and risk reduction or risk treatment is implemented. For this reason, the main philosophy of ISO 27001 is based on risk management. In short, it is to find out where the risks are and then systematically treat them.

The measures (or controls) to be applied are usually policies, procedures and technical practices (eg software and equipment). However, in most cases, companies already have all hardware and software. But they may be using them in an unsafe way. For this reason, the majority of the ISO 27001 implementation will be related to setting the organizational rules. ISO 27001 is also required to prevent security breaches. ISO 27001, multiple policies, procedures, people, assets etc. to be managed are  explained how to integrate all elements in the information security management system.

Therefore, managing information security is not only about IT security (ie, firewalls, anti-virus, etc.). At the same time, managing processes, providing legal protection, managing human resources, providing physical protection, and so on.

Why is ISO 27001 good for your company?

There are four basic business advantages that a company can achieve by implementing this information security standard:

Compliance with legal requirements: There are more laws, regulations and contractual requirements for information security, and most of these requirements can be resolved by applying ISO 27001. This standard provides you with an excellent methodology to suit all of these.

You get a marketing advantage: If your company is certified and you have competitors, you may have an advantage in the eyes of customers who are sensitive to ensuring the security of your information.

Low costs: The main philosophy of ISO 27001 is to prevent the occurrence of security incidents and to evaluate each event large or small. For this reason, by blocking them, your company will save a lot of money. And the best thing is that the investment in ISO 27001 is much smaller than the cost savings you will get.

Better organization: There is usually no time to stop and identify the processes and procedures of fast-growing companies. As a result, employees often do not know when and by whom processes should be done. Implementation of ISO 27001 helps to resolve such situations. Because companies encourage their main processes (even those not related to information security) to write so they can reduce their employees' lost times.