Position: President and chief operating officer of Sourcefire Inc., a network security company in Columbia.

Career Highlights: Chief executive, Mountain Wave Inc., which was acquired by Symantec Corp. in July; senior vice president, worldwide sales, Aether Systems Inc.; senior vice president, worldwide sales, Riverbed Technologies; vice president of sales, Axent Technologies Inc.

Age: 48

Education: BA in economics at University of Notre Dame; MBA in finance at University of Notre Dame.

Personal: Lives in Clifton, Va., with wife Teresa and their children Meghan, 16, and Lauren, 12.

You're planning an aggressive sales and marketing initiative. Why is such a strategy necessary in this environment?

When we say aggressive what we're talking about is building sales channels and marketing programs that enable Sourcefire to capture a large percentage of the information security market share. The way we're doing that is targeting both the federal government and large commercial enterprise accounts.

And how will you achieve that?

Our primary goal is to capture 20 percent of the intrusion detection security market by 2006, which at that time will be about a billion-dollar market, which would make us a $200 million company.

How feasible is that?

We have 80 customers already. We're doubling our revenues quarter-over-quarter.

In one of your previous positions, you helped take a company from zero to $100 million in five years. The company also went public. Are you planning to do the same at Sourcefire?

You could say that we've had conversations about it. The company will give consideration to an IPO at an appropriate time.

What are the latest advances in security technologies? Where is the future of security technology?

Security technology is . . . moving to a stage where technology like Sourcefire's can detect a myriad of different types of attacks, such as "code red." Recently, we were able to respond [to a similar attack] within a matter of hours by creating a signature that could detect the attack and stop it in the process. Whereas other first-generation intrusion detection systems cannot do that.

Code red is basically a malicious code that has been developed by a hacker to try to bring down a production network.

So, what's the most serious threat?

Information security problems.

Should the public be concerned about increased government regulation after the terrorist attacks of Sept. 11, 2001?

No, our technology doesn't give the government or other people access to information. What it principally does is it detects and stops malicious attacks. Our founder, Martin Roesch -- and he was the author of an open-source intrusion detection system called SNORT --

commercialized and created the company in 2001. And it is the most advanced intrusion detection system on the planet.

-- Judith Mbuya