What's the Best IS Defense? Being Prepared.

by Paul A. Strassmann

Computerworld

February 10, 1997

The time has come for information executives to turn fearful.
CIOs must become as aggressive about information security
as the professional spies and thieves who threaten them.

Professional thieves and blackmailers, not amateur or prankster hackers, traverse the global network seeking opportunities to steal money, launder illegal funds or extort political concessions. They have an exceptionally high level of technological sophistication.

Information warfare is raging on the economic front. Governments and businesses seek an advantage over rivals through cybercrime and electronic espionage. Their targets: information assets such as engineering drawings, process flowcharts, experimental data, software, patent applications, test results, financial data, customer prospect lists, business proposals and litigation documents.

How will your company's computers fare when they come under attack? And if you are the CIO, how will you fare? Like it or not, chief information officers are also chief information security officers. You must answer for the fragility of your company's information systems.

Here's what CIOs need to do:

1. Take Charge of Security

CIOs must accept the security, integrity and availability of their companies' computer networks as one of their key responsibilities. That responsibility can't be outsourced.

The office of the CIO must have the charter to collect, analyze and understand incidents whenever it detects information-security infractions, regardless of where they occur. The CIO must have the means to monitor compliance with information-assurance policies. The board of directors, and specifically the board's audit committee, should look to the CIO to certify that information-security exposures don't exceed specified expectations.

CIOs also must direct their development staff to make information security an inherent element of IS design. Retrofitting security into a system designed on the presumption of innocence and honesty is often too expensive -- or too late -- to be worth doing.

2. Create Independent Central Security Staffs

Large companies need a knowledgeable and trusted staff of experts who can analyze threats to their business and install countermeasures against information attacks. That includes attacks that ask for help from trusted insiders, such as employees and contractors. The staff should oversee the following: The security staff must have the authority to review all information-handling practices and procedures to ensure that systems are secure.

Companies also need an independent technical review organization to certify their information-security design practices. Without independent certification, the danger frequently is that those who cause information-security exposures won't recognize that they have done so.

3. Protect the Security Budget

CIOs must champion investing a significant share of IS resources in security.

Companies are kept from taking security seriously by organizational indifference to strict security precautions; competing interests, such as quickly filling technical positions without thoroughly checking the personal backgrounds of candidates; and disincentives to security cooperation, such as making information easily available to everyone. Security funding becomes a tempting target for executives seeking money for pet projects.

Security funding faces two problems: Information security is expensive, and the payback isn't apparent until it's too late. One security-minded company budgeted $310 per person to cover the cost of security: secure ID cards, antivirus software, an Internet firewall server, secure ID numbers for employees in transit, encryption software, intrusion detection systems, central security administration and a security-testing staff. Add the cost of delays and inconveniences caused by security practices, and the cost balloons to $1,000 per person per year -- as much as 10% to 15% of workstation expenses.

One solution is to eliminate all use of diskettes, floppy disks, removable disk cartridges and removable hard drives from the network unless a verifiable and tamper-proof usage record can be left. At least a quarter of the cost of ownership can be traced to incidents involving removable media. When a user inserts incompatible or faulty software, he creates conditions that magnify the demand for support services. Almost every breach in information security is traceable to network access via a removable disk.

Corporate executives sometimes find my information-security observations unduly alarming. To them I say, "It's only a matter of time before a crippling failure of a critically important computer installation takes place. Paranoia -- a state of anxiety that somebody may do you harm -- isn't always based on imaginary fears. If you can think of a rival who wishes your company harm, then prudence may be essential for survival."

Paul Strassmann is adjunct professor of information warfare at National Defense University, on the grounds of Fort McNair in Washington, D.C. He recently participated in a one-year study for the U.S. secretary of defense on how to protect the nation's defense information infrastructure. Visit his Web site at www.strassmann.com


Copyright 1997 by IDG Communications, Inc., 500 Old Connecticut Path, Framingham, MA 01701.
Reprinted by permission of Computerworld

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