Information Security

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What Does Information Security Mean?

Information security (IS) is designed to protect the confidentiality, integrity and availability of computer system data from those with malicious intentions. Confidentiality, integrity and availability are sometimes referred to as the CIA Triad of information security. This triad has evolved into what is commonly termed the Parkerian hexad, which includes confidentiality, possession (or control), integrity, authenticity, availability and utility.

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Techopedia Explains Information Security

Information security handles risk management. Anything can act as a risk or a threat to the CIA triad or Parkerian hexad. Sensitive information must be kept – it cannot be changed, altered or transferred without permission. For example, a message could be modified during transmission by someone intercepting it before it reaches the intended recipient. Good cryptography tools can help mitigate this security threat.

Digital signatures can improve information security by enhancing authenticity processes and prompting individuals to prove their identity before they can gain access to computer data.

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Margaret Rouse
Technology Expert
Margaret Rouse
Technology Expert

Margaret é uma premiada redatora e professora conhecida por sua habilidade de explicar assuntos técnicos complexos para um público empresarial não técnico. Nos últimos vinte anos, suas definições de TI foram publicadas pela Que em uma enciclopédia de termos tecnológicos e citadas em artigos do New York Times, Time Magazine, USA Today, ZDNet, PC Magazine e Discovery Magazine. Ela ingressou na Techopedia em 2011. A ideia de Margaret de um dia divertido é ajudar os profissionais de TI e de negócios a aprenderem a falar os idiomas altamente especializados uns dos outros.