Abstract
Critical information infrastructure has enabled organisations to store large amounts of information on their systems and deliver it via networks such as the internet. Users who are connected to the internet are able to access various internet services provided by critical information infrastructure. However, some organisations have not effectively secured their critical information infrastructure and hackers, disgruntled employees and other entities have taken advantage of this by launching cyberattacks on their critical information infrastructure. They do this by using cyberthreats to exploit vulnerabilities in critical information infrastructure which organisations fail to secure. As a result, cyberthreats are able to steal or damage confidential information stored on systems or take down websites, preventing access to information. Despite this, risk strategies can be used to implement a number of security controls: preventive, detective and corrective controls, which together form a system of controls. This will ensure that the confidentiality, integrity and availability of information is preserved, thus reducing risks to information. This system of controls is based on the General Systems Theory, which states that the elements of a system are interdependent and contribute to the operation of the whole system. Finally, a model is proposed to address insecure critical information infrastructure.
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