ADVISORY/Xybernaut Supports Virginia First Response Teams During Emergency Preparedness Exercise; Law Enforcement and First Responder Agencies to Demonstrate Emergency Preparedness.

Business Editors/High-Tech Writers

ADVISORY...for Thursday (Dec. 18)

FAIRFAX, Va. & WINCHESTER, Va.--(BUSINESS WIRE)--Dec. 16, 2003

Xybernaut(R) Corporation (NASDAQ: XYBR) today announced its involvement in a joint effort to further develop emergency preparedness and first response procedures for critical infrastructure in the Northern Shenandoah Valley (VA) area.

This effort is being spear-headed by ComCARE Alliance with a cost-sharing grant from the Virginia Department of Transportation. The program has been ongoing over the past three years with the objectives of developing and deploying a modern integrated emergency communications system that connects various communities of federal, state and local first responders.

The initiative has brought together a diverse team of agencies and companies that include public safety, emergency medicine, emergency management and transportation, as well as, companies in the transportation, telecommunications and information technology sectors. Technologies and know-how are been being contributed by various companies including Xybernaut Corporation, DICE Corporation, GeoDecisions, Navigation Technologies, Optimus Corporation, mobileFoundations, Qualcomm, OnStar and others.

The system is designed for all types of emergencies/hazards such as bio-terrorism, traffic accidents, HAZMAT situations, medical emergencies, law enforcement/fire/rescue and many others.

The practices, techniques and technologies being demonstrated and evaluated are intended to be a model for other first responder scenarios being tested and implemented in the Northern Shenandoah Valley area and other locations throughout the U.S.

WHAT:

Interoperable Emergency Communications: Demonstration and Drill

WHERE:

Shenandoah University Health Professions Building
1775 North Sector Court
Winchester, Virginia

(More detailed directions are available to media representatives with
qualified credentials by contacting Mike Binko at 703-654-3637 or
[e-mail])

DATE/TIMES:

December 18, 2003

Greeting and Exhibits -- 9:00 AM
Technology Demonstration and Drill -- 10:00 AM - 12:00 PM
Lunch and Exhibits -- 12:00 PM
(All times are Eastern Time)

HOW TO COVER THE NEWS: Reporters/media representatives interested in attending should contact Michael Binko at [e-mail] or by phone at 703-654-3637. Qualified reporters will be able to register prior-to and the day-of the event. Media representatives can schedule Xybernaut wearable computer demonstrations and face-to-face interviews with participants by also contacting Michael Binko at 703-654-3637 or [e-mail].

About Xybernaut

Xybernaut Corporation is the leading provider of wearable/mobile computing hardware, software and services, bringing communications and full-function computing power in a hands-free design to people when and where they need it. Headquartered in Fairfax, Virginia, Xybernaut has offices and subsidiaries in Europe (Germany) and Asia (Japan). Visit the Xybernaut Web site at www.xybernaut.com. Product photos are also available directly from Xybernaut.

Xybernaut, the Xybernaut logo and Mobile Assistant(R) V (MA(R) V) are trademarks or registered trademarks of Xybernaut Corporation in the USA and other countries. All other brand and product names are or may be trademarks of, and are used to identify products or services of, their respective owners.

This press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995 (the "Act"). In particular, when used in the preceding discussion, the words "plan," "confident that," "believe," "scheduled," "expect," or "intend to," and similar conditional expressions are intended to identify forward-looking statements within the meaning of the Act and are subject to the safe harbor created by the Act. Such statements are subject to certain risks and uncertainties and actual results could differ materially from those expressed in any of the forward-looking statements. Such risks and uncertainties include, but are not limited to, market conditions, the availability of components and successful production of the Company's products, general acceptance of the Company's products and technologies, competitive factors, timing, and other risks described in the Company's SEC reports and filings.