The landscape of IT risk
Risk, as far as IT is concerned, has typically always been about dealing with threats and invariably is centred on technology. The first problem is that the approach lacks balance often only the negative is highlighted without the positive being acknowledged. The impression might be that a situation in IT is in dire straits while in reality it isn't. In most cases a SWOT (Strength, Weakness, Opportunities and Threats) analysis is used to achieve a balanced approach but often this tends to be subjective.
The second problem is that the landscape of IT is more than just technology but also about people and processes. Risk management needs to deal with the latter as well as technology otherwise only a selective view of the risks are presented.
In many organisations, Information security tends to be an island. The attention seems to be heavily focused on security breaches and crime. All security professionals preach the attributes of confidentiality, integrity and availability. However, the time is focused mostly on confidentiality which is all about information and services being accessible to only those who are authorised. Very few actually address integrity (safeguarding the accuracy and completeness of information and services) and availability (authorised customers have access to the information and services when required). If we draw a matrix of this, this is what it will look like:
The risk of a threat is a product of the impact and probability of the threat. The impact is the consequences and the probability is the likelihood or vulnerability. This risk is now analysed to determine its rating on a scale from low to high. A decision is then made on this risk from addressing it to even ignoring it. All valid decisions if there are made with knowledge. Often the risks are addressed with valid controls that are underpinned with suitable countermeasures.
The above methodology broadly describes a standardised approach to assess risk within IT. This is crucial when assessing the consequences of a major incident. The above can be utilised in the reporting and analysis component of the major incident process to provide a balanced risk assessment of the crisis that has occurred. The method lends heavily on CRAMM but has been simplified for rapid use. CRAMM (CCTA Risk Analysis and Management Method) is a risk management methodology which uses an automated tool based on qualitative risk assessment methodologies. It is used by going through the stages of a CRAMM review, i.e. asset identification and valuation, threat and vulnerability assessment, and countermeasure recommendation. CRAMM is a comprehensive and flexible tool especially for justifying prioritised countermeasures at a managerial level. However, it typically requires qualified and experienced practitioners as opposed to the tool and methods described here are much more simplistic.
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