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Management's role in Security
(PART II)
Insecurity is not a technical failing
Turning to ‘policy’, the Hong Kong Government neatly defines this
area as documentation and guidance “which states the requirements
and good practices regarding the security protections and
operational control.” What managers and risk owners must understand
is that policies do not exist in a vacuum, nor are they simply
pieces of paper used to satisfy audit requirements. They are organic
materials, which must grow and develop in step with an organisation.
They are in themselves components of security architectures and the
policy must be expressed in an organisational context.
The concept of ‘process’ describes the means by which the
organisation’s strategic policies are mapped to the business
operations and activities. Part of this mapping is the application
of technologies and the refinement of working methods, so as to
facilitate safe and trustworthy functions. However, this is
precisely where many firms focus all of their security efforts,
essentially employing technologies to meet their security
requirements. This has to be viewed with the right perspective;
Firewalls, Intrusion Detection Systems, Public Key Infrastructures,
Anti-Virus countermeasures are all enablers that facilitate risk
management. Whilst valuable pieces of the overall enterprise
security jigsaw, they cannot by themselves provide an absolute level
of assurance and integrity. From 2003 to 2004 Symantec documented
the discovery of over two and a half thousand software
vulnerabilities, an average of seven clear and present risks to
infrastructures emerging each and every day. It takes time to
research and understand these threats, developing effective means of
countering the concern. No tool, regardless of how frequently it is
updated or the logic base upon which it operates, can protect all
elements of an environment given this ever-changing landscape.
Tools and technologies should not be disregarded, however, for they
do serve an important function in providing enterprise security.
However, management must be able to appreciate their core purpose
(that a firewall screens out potentially harmful traffic based on
defined rules, for instance), so that a good blend of controls and
countermeasures can be agreed and enforced across the information
space. Placed into the wider context, such technologies must serve a
purpose within an overall objective of an encompassing and pervasive
security strategy, driven forwards by management.
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