In these days of all-out combat in Afghanistan, terrorist
attacks in New York and Anthrax in Washington, it's easy to lose
one's perspective. I know I've become addicted to checking the
major news web sites several times a day. I now listen to the
news radio stations on the way to and from work instead of my
normal rock and roll station. It seems like something might
happen at any moment, and I want to know immediately.
Something that seemed to be mentioned in every IT related
publication for the last year or so is the possibility of cyber
warfare. This is the concept of attacking a country through it's
information systems (specifically the internet).
Since the attacks I've seen the number of articles go from a few
per week dozens per day. Warnings about security risks seem to
be popping up all over the place. It is important that these
warning be taken seriously - it's time to wake up folks and get
your systems locked down.
What could be attacked? Just about every company has an internet
connection these days. Many of those companies do not have good
security, as is proven by the recent Nimda and Code Red
outbreaks, as well as numerous penetrations by hackers.
If you are an IT manager you probably need to ask yourself some
important questions to be prepared for the possibility of
attack. In fact, it is your patriotic duty to be sure your
systems are safe and secure. To do otherwise not only puts your
company in danger, it actually threatens, even in a small way,
the security of your country.
Does your organization really need to be attached to the
internet at all? - This is the first question to ask yourself. I
know it seems like every workstation at every company must be
attached to the internet, is it really necessary? Does it add to
the company bottom line? For many companies, the answer is yes,
for others no.
Is the information that you provide to the internet community
appropriate? - This question has come up on a large number of
government and utility sites. Is it really necessary, for
example, to include a map of a power plant? I know this might
seem useful to, say, schools for educational purposes, but it
may also be even more useful to terrorists and other evil-doers.
Is your backup and archive strategy sound? - The most important
single task that you perform is backups. Do them regularly and
check the data occasionally.
Are your password policies good enough? - The weakest link in
most security schemes is the user and his or her passwords. If
your management will allow it, make sure your users have long,
complex passwords which they change regularly. Enforce best
practices with their passwords.
If your front line security adequate? - Have you got firewalls
installed? Regardless of whether you've got a home computer or a
hundred million dollar complex, you'd better install a firewall
if you have not done so already. A hardware firewall is the best
solution, but a software one will do for a home system if money
is tight.
Have you defined a DMZ? - If you manage a network for a company,
you should reexamine your firewall strategy to ensure that you
have a proper DMZ. What is a DMZ? To simplify it a bit, it's a
way to protect your application servers even if your web servers
are compromised. You have your core application systems behind a
firewall. On the outside of that firewall you place your web
servers. Then to protect them you put another firewall.
Is your virus protection adequate? - If you haven't installed
antivirus software by this time, shame on you. It does not
matter whether you run a network of ten thousand computers or a
cheap home system, you'd better have this basic application not
only installed, but regularly updating.
Is your system patched properly? - All vendors release software
with bugs. It is the responsibility of all system managers to
periodically review operating system and applications patches
and releases and update them as needed. Remember, even the
Apache web server is ridiculously insecure if not properly
patched.
Are you educated on security? - If you haven't already, look
around and find some books, classes or information about
security. Become educated as fast as you can. Once you
understand security, then propose, plan and implement what you
have learned.
Do you perform background checks on IT related positions? - All
new hires into IT should have thorough background checks before
they are hired. You should also check the backgrounds of all of
your IT consultants. It's best to know who you are hiring before
you hire.
Is your user community educated about security? - Perhaps one of
the best tasks you can perform is to educate your users on good
security practices. Emphasize the reasons why security is
important and how it protects your users. I usually stress that
security penetrations are a direct threat to their employment.
Spend some time explaining and demonstrating how social
engineering works - this is the number one way break-ins occur.
Do you have a working disaster plan? - To be perfectly prepared,
ensure that you have a working, tested, debugged disaster plan
ready at all times. That way if for some reason your primary
systems are rendered useless you can still have a running
company.
Is your security plan confidential? - The less information you
have available to evil-doers the better. Keep any information
about how your systems are secured confidential - treat it on a
need-to-know basis.
Remember this important fact. As of September 11th the United
States and all of the free nations are in a war. And when your
country is in a state of war you had better be prepared to be
attacked. It's the only sane thing to do.
About the author:
Richard Lowe Jr. is the webmaster of Internet Tips And Secrets
at http://www.internet-tips.net - Visit our website any time to
read over 1,000 complete FREE articles about how to improve your
internet profits, enjoyment and knowledge.
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