Why carry out a cyber security risk assessment?
Risk assessment – the process of identifying, analysing and evaluating risk – is the only way to ensure that the cyber security controls you choose are appropriate to the risks your organisation faces.
Without a risk assessment to inform your cyber security choices, you could waste time, effort and resources. There is little point implementing measures to defend against events that are unlikely to occur or won’t impact your organisation.
Likewise, it is possible that you will underestimate or overlook risks that could cause significant damage. This is why so many best-practice frameworks, standards and laws – including the GDPR (General Data Protection Regulation) and DPA (Data Protection Act) 2018 – require risk assessments to be conducted.
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What does a cyber security risk assessment involve?
A cyber security risk assessment identifies the various information assets that could be affected by a cyber attack (such as hardware, systems, laptops, customer data and intellectual property), and then identifies the various risks that could affect those assets.
A risk estimation and evaluation are usually performed, followed by the selection of controls to treat the identified risks.
It is important to continually monitor and review the risk environment to detect any changes in the context of the organisation, and to maintain an overview of the complete risk management process.
ISO 27001 and cyber risks
The international standard ISO/IEC 27001:2013 (ISO 27001) provides the specifications for a best-practice ISMS (information security management system) – a risk-based approach to information security risk management that addresses people, processes and technology.
Clause 6.1.2 of the standard sets out the requirements of the information security risk assessment process. Organisations must:
- Establish and maintain certain information security risk criteria.
- Ensure that repeated risk assessments “produce consistent, valid and comparable results”.
- Identify “risks associated with the loss of confidentiality, integrity and availability for information within the scope of the information security management system” and identify the owners of those risks.
- Analyse and evaluate information security risks, according to the criteria established earlier.
It is important that organisations “retain documented information about the information security risk assessment process” so that they can demonstrate that they comply with these requirements.
They will also need to follow a number of steps – and create relevant documentation – as part of the information security risk treatment process.
ISO 27005 provides guidelines for information security risk assessments and is designed to assist with the implementation of a risk-based ISMS.
IT Governance risk assessment services
Conducting a cyber security risk assessment without expert guidance is a complex process that requires considerable planning, specialist knowledge and stakeholder buy-in.
Save time and avoid trial and error with IT Governance’s range of risk assessment and cyber security products and services.
Why choose IT Governance?
IT Governance specialises in IT governance, risk management and compliance solutions, with a special focus on cyber resilience, data protection, the GDPR, the Payment Card Industry Data Security Standard (PCI DSS), ISO 27001 and cyber security.
IT Governance is also recognised under the following frameworks:
- UK government CCS-approved supplier of G-Cloud services
- CREST certified as ethical security testers
- Certified under Cyber Essentials Plus, the UK government-backed cyber security certification scheme
- Certified to ISO 27001:2013, the world’s most recognised information security standard