|
Computer Threats: What to Focus on
First
Prioritize
your security efforts
Yes, spam is a problem. Screening and deleting junk e-mail wastes
your time and your employees' time. And if a junk e-mail attachment
is opened, it may unleash a virus.
But if your company
predominantly focuses on battling spammers, you may be ignoring much
more serious threats that can actually cripple your business. When
thinking about computer and network security, begin by sorting out
what constitutes a genuine security menace to your computer systems,
and what is mostly a nuisance. Here's guidance to ensure you're
drawing the battle lines in the right place.
E-mail: Lose sleep
over attachments, not spam
Studies show that spam makes up the vast majority of all e-mail
sent. Junk mail filters like the one included in Outlook 2003 will
help divert these unwelcome messages from your inbox, but will never
prevent all spam from being sent to your e-mail account.
Yet remember: Junk mail
by itself will not damage your business. However, there are some
e-mail threats that will.
Viruses and worms:
These small but malicious programs are commonly spread by e-mail.
They come in the form of cleverly disguised attachments to messages
that trick your employees into clicking on them. Once installed,
viruses infect programs and files, can destroy your data and can
effectively force you to close your business while you disinfect
your computers. An e-mail virus can spread by e-maling itself to
people in the your address book — maybe even to your business
Phishing: Some
e-mail messages are "phishing" for valuable information. The sender
asks for credit card numbers, network passwords or account numbers.
But links in these messages actually take you to Web sites — that
often look legitimate — run by Internet thieves. If you enter your
data, you give those thieves the information they need to get into
your computer system and access company data
Recommendations
- Instruct your
employees to never open suspicious attachments that they do not
expect.
- Remind employees
to use extreme caution when responding to messages that ask for
passwords or account information. If they have any doubts about
the validity of the e-mail, they should contact the sender by
phone and verify the legitimacy of the request.
- In the event a
virus-infected attachment is opened, make sure your antivirus
software is up-to-date and that you have installed security
updates for your operating system and other software.
The Internet: Fear downloads before pop-ups
Pop-up ads in your browser window are indeed annoying. They
interfere with Web surfing and searching. But, like junk e-mail,
they pose a minor threat to your business. Programs that your
employees download from the Web are another story, however.
- Viruses and
spyware: Programs downloaded from Web sites can contain
viruses and "spyware." Spyware can enter your computer systems
through infected e-mail messages and can secretly monitor what
employees type and record account numbers and passwords. Spyware
can also enter your computer through security holes in the
software you use.
- Adware:
Adware installs itself in a similar manner to spyware, though it
typically just displays extra advertisements when you are
online. Adware can slow down your computer and it can be
frustrating to try to close all the extra pop-up windows, but it
will not destroy your data.
Recommendations
- Create a security
policy that clearly states what employees can download to their
office computer, and what they cannot. Explain in person to
employees why the policy is important.
- Consider using
software that checks for and removes spyware. Microsoft has a
free Windows AntiSpyware program and a Malicious
Software Removal Tool you can use to rid your PCs of
unwanted software.
- Use a firewall on
your PC and a router for network protection. The combination of
activating the built-in Windows Firewall and adding a network
protection device enables you to filter or block Internet
traffic to and from dangerous sites.
- Make sure your
antivirus software is up-to-date and that you use it often to
thoroughly scan your system. If antivirus software was installed
on your new PC for a trial period, make sure to buy a
subscription after the period expires, or to buy and install a
new antivirus product.
- Regularly check
with your software manufacturers to make sure you have
downloaded and installed the latest updates to patch security
holes. If available, use an automatic update service like the
one available with Windows XP.
Data Protection: Worry about backups before
hackers
Hackers — Internet intruders who work their way into your computer
network — garner considerable media attention, especially those who
are identified and captured. But you have more to fear from bad data
back-up habits than cyber villains. Without regular data back ups,
hardware failures, accidental deletions, and floods and fires can
permanently wipe out all your sales records, customer contact
information and order history — the data that is the core of your
business.
Recommendations
- Back up your data
weekly if not daily to a CD, shared folder on a network, or
second hard drive. Windows XP includes a back-up utility that
can perform scheduled back-ups.
- Test your backups
regularly by restoring your data to a test location. Otherwise,
you'll never know if the data can be successfully restored if
and when you need it.
- Keep a copy of
your weekly back-ups at another location to protect them in case
of a fire, break-in or other disaster.
One of the keys to
business success is setting the right priorities. The same is
true when protecting your business computers. Understand that
not every computing problem carries a security risk — but make
sure to address the ones that do.
Our GN clients receive antivirus and antispyware software as
part of our service. Give us a call at 800-SLPOWER if you
want to learn more! |