Who's Hacking Into Your System
Now?
by Cruickshank, Doug
Canadian Manager • Summer, 2001 • Grant Thornton L.L.P., Internet security
services
Dreams of overnight success through new e-business ventures can
quickly turn to nightmares if security issues are not addressed in your
business planning.
When your computer systems interconnect with other systems to
enable e-business, the risks to the integrity of your systems and data
multiply exponentially. And these threats are not limited to the
external threats posed by hackers. The dangers are as much internal as
they are external.
Before doing business through the Internet, security must be
addressed. But don't think of security as a barrier, but rather an
enabler of success. If you can promise good security at your site,
customers will be encouraged to do business with you, just as they are
encouraged by your wide selection of goods, the sophistication of your
site, or your prompt and dependable service. Good security will also
convince customers that your pledges of consumer privacy (another
barrier to e-commerce) are sound.
Just as you may protect your bricks and mortar business from
break-ins only to find out the store clerk can rob you blind, in the
e-business world security must cover many things. Your customers want to
know their business dealings and any information shared with you will be
kept private. You, on the other hand, want your business systems to
remain available to customers yet safe from actions that could damage
your reputation. Both you and your customers want to know that any
information exchanged remains exactly as originally transmitted -- not
somehow altered enroute.
Start With the Basics
e-business security is a very complex equation. It involves a
unique combination of technologies and management that, even if setup to
'best practice' standards, cannot absolutely guarantee full
protection. However, if you pay attention to the basics, you will reduce
the risks and instill customer confidence in your e-business.
Security 101 -- Protecting Your Systems From Your Employees
After reading newspaper accounts of high profile hacker attacks you
might conclude that external threats are your biggest concern. However,
most reliable surveys report that employees are the most common source
of security breaches. Through their actions, whether intentional or by
mistake, your system may be brought down for days at a time, which means
serious damage to your reputation and lost sales.
Your technology system's first line of defense should be
security policies that take into account your connection to the
Internet. Firewall configuration, intrusion detection and decoy systems,
access controls (including password strength), employee privileges,
supervision, and system redundancy and backup need to be considered. Be
thorough and aggressive! Once you are satisfied with your policies, go
about the business of making them work.
Establish Solid Web Security
Establishing perimeter security with a firewall is an important
layer of your technology system's security. A firewall is a barrier
between two networks, such as your internal network and the Internet.
The firewall blocks unwanted messages from passing between the two. If
not properly configured, a firewall can be exploited by an attacker.
Once effectively established though, a firewall, and indeed all of your
perimeter security, needs to be continuously studied and tested to
ensure your business can withstand the latest new threats in
"hacker land". Think about having periodic penetration tests
and vulnerability assessments performed by a trusted security
professional to gain comfort that your established security is sound.
Firewalls alone, however, are not a complete Internet security
solution. Setting up an intrusion detection system will let you know
when someone is lurking around or even has penetrated your security. It
is also wise to have a good incident response plan ready to deal with
events reported from an intrusion detection system.
Finally, pay attention to encryption technology. It protects the
credit card and order transactions transferred through the Internet by
your customers.
Assess and Re-Assess
Good security in the e-business world requires attention. Every day
hackers find new ways to exploit your system and they are quick to share
this information with almost anyone. To ensure new security concerns are
addressed, perform security audits on a regular basis and ensure the
results are followed up.
Cover Your Risks
Perhaps the most important thing you can do is bring in a
specialist with the knowledge and skills to identify your risks, assess
your systems and provide practical solutions. At Grant Thornton LLP, our
e-business team includes technology risk management professionals whose
business is to keep up with the changing complexities of managing
security on the Internet and bring that knowledge to bear on your
technology systems. Our professionals are available to perform an
in-depth "security assessment" that will cover the basics
analyzing the adequacy of your security policies, password rules,
anti-virus protection, firewalls, intrusion detection systems, the use
of encryption technology and more -- to identify the vulnerabilities in
your system that both employees and hackers could exploit.
Depending on your needs, our assessments will analyze your security
architecture, perform vulnerability assessments, and conduct penetration
testing.
Beyond providing advice on e-business security, we are licensed by
the Canadian Institute of Chartered Accountants to issue their WebTrust
seal to qualified businesses. This seal provides your customer with
assurance that your site has installed important controls that meet or
surpass established guidelines on business practices, transaction
integrity, privacy, security, availability, confidentiality and
non-repudiation.
Good security is important to the success of every business. In
e-business it's vital. Protect yourself with solid security
practices and reap the rewards. Remember, there's still a
"b" in e-business.
Grant Thornton LLP is a leading Canadian firm of chartered
accountants, management consultants and other professional advisers that
serves entrepreneurial people and organizations nationwide. Grant
Thornton advisers provide a full range of business advice including
assurance, tax, financial and management consulting services to
owner-managed businesses and not-for-profit organizations.
Covering the Basics of e-Business Security
1) Implement a comprehensive security policy
2) Enforce strong passwords
3) Distribute anti-virus software
4) Install a properly configured firewall
5) Install an Intrusion Detection System
6) Use strong encryption technology
7) Perform regular security audits
COPYRIGHT 2001 Canadian Institute of
Management Reproduced with permission of the copyright holder. Further reproduction or distribution is prohibited without permission.
Copyright 2001, Gale Group. All rights
reserved. Gale Group is a Thomson Corporation Company.
NOTE: All illustrations and photos have been removed from this article.