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Books > Computing & IT > General theory of computing
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Information Security - Principles and Practices (Hardcover)
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Information Security - Principles and Practices (Hardcover)
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Information is an asset to all individuals and businesses. The
value of an organization lies within its information - its security
is critical for business operations, as well as retaining
credibility and earning the trust of clients. Information security
refers to the processes and methodologies which are designed and
implemented to protect print, electronic, or any other form of
confidential, private and sensitive information or data from
unauthorized access, use, misuse, disclosure, destruction,
modification, or disruption. Information security responsibilities
include establishing a set of business processes that will protect
information assets regardless of how the information is formatted
or whether it is in transit, is being processed or is at rest in
storage. Information security has become very important in most
organizations. The main reason for this is that access to
information and the associated resources has become easier because
of the developments in distributed processing, for example the
Internet and electronic commerce. The result is that organizations
need to ensure that their information is properly protected and
that they maintain a high level of information security. In many
cases, organizations demand some proof of adequate information
security from business partners before electronic commerce can
commence. Organizations employ a dedicated security group to
implement and maintain the organization's information security
program. The security group is generally responsible for conducting
risk management, a process through which vulnerabilities and
threats to information assets are continuously assessed, and the
appropriate protective controls are decided on and applied. When
information is not adequately protected, it may be compromised and
this is known as an information or security breach. The
consequences of an information breach are severe. For businesses, a
breach usually entails huge financial penalties, expensive law
suits, loss of reputation and business. For individuals, a breach
can lead to identity theft and damage to financial history or
credit rating. Recovering from information breaches can take years
and the costs are huge. Threats to sensitive and private
information come in many different forms, such as malware and
phishing attacks, identity theft and ransomware. To prevent
attackers and mitigate vulnerabilities at various points, multiple
security controls are implemented and coordinated as part of a
layered defense in depth strategy. This should minimize the impact
of an attack. To be prepared for a security breach, security groups
should have an incident response plan (IRP) in place. This should
allow them to contain and limit the damage, remove the cause and
apply updated defense controls.
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