Building a
Blueprint for Network Security
December 29, 2003
By Paul Rubens
A Culture of Security
This points to the
cultural aspect of security — too often users find
security measures simply as impediments to their
work, annoyances that are circumvented whenever
possible. It’s only when a culture of security is
instilled into an organization — so that every
employee is aware of security measures and why they
have been put in place — that security can be
effective. “If you get employees involved, there
is a far higher chance of succeeding in improving
security, and getting employees to keep other
employees in line,” Wilke says.
Outside consultants
can certainly add value to a security exercise, but
their greatest value comes only after it’s clearly
understood what needs protecting and once all
employees have been involved. “The types of
attacks that companies are experiencing is changing
constantly, and most companies can’t cope
themselves, so it simply makes sense to get outside
help,” says Mike Arnavutian, head of security
strategy at BT Global Services.
“A security
consultant like us can manage security for a
company, removing risk and taking liability — and
would charge on that basis.” It’s not only
expertise that consultants can bring: security
specialists can often offer considerable benefits of
economies of scale. “If you look at the cost of
monitoring and managing a system, it’s often
cheaper for outside experts to do it for you,” he
says.
Outside companies
can also help by providing alternate facilities for
use in a disaster, which may often be necessary from
a risk management point of view, but which can also
be prohibitively expensive to equip and have
standing idle.
When is it safe to
say “enough is enough,” and relax in the
knowledge that the network is secure and all prudent
measures have been put in place? Sadly, the answer
is “never.”
Security is a
process, not a task, and it needs to be reviewed
critically and regularly. New threats appear all the
time, and measures that are satisfactory one day may
be woefully inadequate the next. The only way to be
sure that you are doing enough is by understanding
that when it comes to security, nothing is ever
enough for long.
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