18 resultados para technological protection measures


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Many aspects of our modern society now have either a direct or implicit dependence upon information technology. As such, a compromise of the availability or integrity in relation to these systems (which may encompass such diverse domains as banking, government, health care, and law enforcement) could have dramatic consequences from a societal perspective. These key systems are often referred to as critical infrastructure. Critical infrastructure can consist of corporate information systems or systems that control key industrial processes; these specific systems are referred to as ICS (Industry Control Systems) systems. ICS systems have devolved since the 1960s from standalone systems to networked architectures that communicate across large distances, utilise wireless network and can be controlled via the Internet. ICS systems form part of many countries’ key critical infrastructure, including Australia. They are used to remotely monitor and control the delivery of essential services and products, such as electricity, gas, water, waste treatment and transport systems. The need for security measures within these systems was not anticipated in the early development stages as they were designed to be closed systems and not open systems to be accessible via the Internet. We are also seeing these ICS and their supporting systems being integrated into organisational corporate systems.

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This paper presents a new method for measuring localized corrosion under disbonded coatings by means of an electrochemical sensor, denoted differential aeration sensor (DAS). It measures the distribution of electrochemical currents over an electrode array surface partially covered by a crevice that simulates a disbonded coating. The DAS has been evaluated using immersion tests at open circuit and under cathodic protection (CP) conditions. Under both conditions, anodic as well as cathodic current densities were detected within the crevice. A fundamental understanding for the detection of anodic currents under CP has been explained in terms of basic electrochemistry. Based on the current distribution data provided by the sensor, two different analysis methods have been used to estimate corrosion and its distribution. These methods consisted of a direct application of Faraday's Law to the anodic currents detected by the array, and on a sensor-specific method denoted corrected currents' method. It has been demonstrated that under diffusion controlled conditions this latter method produces a better corrosion estimation than the direct application of Faraday's Law. The corrected currents' method allowed the estimation of corrosion patterns outside the crevice under CP. Good correlation between electrochemical calculations and surface profilometry results has been obtained.

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Whistle blowing is an act of exposing the wrongdoings in an organization, either committed by its members of the lower level or the top management. Many have agreed that whistle blowing is an effective means of deterring and detecting organizational mishaps. Whistle blowers have been referred to as canaries in the coal mine. The idea of telling the truth however, may result in exposure to uncontrolled risk by the whistle blower. The extent to which the whistle blower is protected and safe after information is leaked to the public or the relevant authority remains unknown. In the Malaysian context, whistle blowing is not new. Being honest is a custom among Malaysians. Honesty is deeply rooted in Malaysian culture and is supported by the high value Malaysian place on spiritual belief which also put a premium on moral virtue. But being loyal to the management is another thing. A critical issue that whistle blowers face is the tension between the virtues of honesty and the virtues of loyalty. The ethical dilemmas faced by the whistle blowers place them in situations where there are significant and difficult ethical conflicts. Recently, the Parliament of Malaysia has passed the Whistle Blowing Protection Act which was seen as an holistic approach to cover all Malaysians who were willing to blow the whistle. Some do not feel confident that such program under the Act can be accomplished in Malaysia as the Malaysian culture believing keeping things to ourselves. Thus the paper intends to explore the anti-retaliation precautionary factors mediate by the culture that will most likely explain motivational issues subordinates face in publicizing the wrongs that are harmful to the organization in Malaysia.