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What is Cyber Security?



  Cyber Security
Cyber Security is the body of technologies, processes and practices designed to protect networks, computers, programs and data from attack, damage or unauthorized access. In a computing context, security includes both cyber security and physical security.
Ensuring cyber security requires coordinated efforts throughout an information system. Elements of cyber security include:
  • Application security
  • Information security
  • Network security
  • Disaster recovery / business continuity planning
  • Operational security
  • End-user education

One of the most problematic elements of cyber security is the quickly and constantly evolving nature of security risks. The traditional approach has been to focus most resources on the most crucial system components and protect against the biggest known threats, which necessitated leaving some less important system components undefended and some less dangerous risks not protected against. Such an approach is insufficient in the current environment. Adam Vincent, CTO-public sector at Layer 7 Technologies (a security services provider to federal agencies including Defence Department organisations), describes the problem:

 "The threat is advancing quicker than we can keep up with it. The threat changes faster than our idea of the risk. It's no longer possible to write a large white paper about the risk to a particular system. You would be rewriting the white paper constantly..."
To deal with the current environment, advisory organisations are promoting a more proactive and adaptive approach. The National Institute of Standards and Technology (NIST), for example, recently issued updated guidelines in its risk assessment framework that recommended a shift toward continuous monitoring and real-time assessments.

 According to Forbes, the global cyber security market reached $75 billion for 2015 and is expected to hit $170 billion in 2020.
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