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9th August 2016 Current Affairs Questions and Answers

9th August 2016 Current Affairs MCQs, Quiz, Questions : Current Affairs for August 2016 ,  Daily Multiple Choice Questions (MCQs) for In...

Cyber Security

Cyber Security: Cyber security refers generally to the ability to control access to networked systems and the information they contain. Where cyber security controls are effective, cyberspace is considered a reliable, resilient, and trustworthy digital infrastructure. Where cyber security controls are absent, incomplete, or poorly designed, cyberspace is considered the wild west of the digital age. Even those who work in the security profession will have a different view of cyber security depending on the aspects of cyberspace with which they personally interact. Whether a system is a physical facility or a collection of cyberspace components, the role of a security professional assigned to that system is to plan for potential attack and prepare for its consequences.
There are numerous definitions of cyberspace and cyber security scattered throughout literature. Our intent is not to engage in a debate on semantics, so we do not include these definitions. Moreover, such debates are unnecessary for our purpose, as we generally use the term "cyber" not as a noun, but as an adjective that modifies its subject with the property of supporting a collection of automated electronic systems accessible over networks. As well reflected in language-usage debates in both the field of cognitive linguistics and popular literature on lexicography, the way language is used by a given community becomes the de facto to the  "cyberspace" and "cyber security" and simply refer to their own current concept of these terms when it makes sense to do so, while keeping in mind that we generally the term cyber as an adjective whose detailed attributes will change with the system of interest.
At a high level, cyber security is typically explained in terms of a few triads that describe the objectives of security professionals and their methods, respectively (Bayuk 2010). Three that combine to cover most uses of the term are:
-  prevent, detect, respond
-  people, process, technology
-  confidentiality, integrity, and availability.
These reflect the goals of cyber security, the means to achieve cyber security, and the mechanisms by which cyber security goals are achieved, respectively. Prevent, detect, respond addresses goals common to both physical and cyber security. Traditionally, the primary goal of security planning has been to prevent a successful adversary attack. However, all security professionals are aware that it is simply not possible to prevent all attacks, and so planning and preparation must also include methods to detect attacks in progress, preferably before they cause damage. However, whether or not detection processes are effective, once it becomes obvious that a system is threatened, security includes the ability to respond to such incidents. In physical security, the term "first responders" refers to the heroic individuals in policy, fire, and emergency medical professions. Response typically includes repelling the attack, treating human survivors, and safeguarding damaged assets. In cyber security, the third element of the triad is often stated in slightly more optimistic form. Rather than "respond" it is "recover" or "correct." This more positive expectation on the outcome of the third triad activity, to recover rather than simply respond, reflects the literature of information security planning, wherein security management is recommended to include complete reconstitution and recovery of any business-critical system. Because information technology allows diversity, redundancy, and reconstitution for the data and programs required to operate systems, information security professionals expect that damage can be completely allayed. In either case, the lessons learned in response are expected to inform prevention planning, creating a loop of continuous security improvement.


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