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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 /pmliESiaRjmFemO1K0NuQ==

<SEC-DOCUMENT>0001354457-07-000012.txt : 20070118
<SEC-HEADER>0001354457-07-000012.hdr.sgml : 20070118
<ACCEPTANCE-DATETIME>20070118111936
ACCESSION NUMBER:		0001354457-07-000012
CONFORMED SUBMISSION TYPE:	25-NSE
CONFIRMING COPY:	
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20070118
DATE AS OF CHANGE:		20070118

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INTRUSION INC
		CENTRAL INDEX KEY:			0000736012
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		IRS NUMBER:				751911917
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		25-NSE
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20191

	BUSINESS ADDRESS:	
		STREET 1:		1101 ARAPAHO ROAD
		CITY:			RICHARDSON
		STATE:			TX
		ZIP:			75081
		BUSINESS PHONE:		9722346400

	MAIL ADDRESS:	
		STREET 1:		1101 ARAPAHO ROAD
		CITY:			RICHARDSON
		STATE:			TX
		ZIP:			75081

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INTRUSION COM INC
		DATE OF NAME CHANGE:	20000601

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ODS NETWORKS INC
		DATE OF NAME CHANGE:	19970507

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OPTICAL DATA SYSTEMS INC
		DATE OF NAME CHANGE:	19950517

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NASDAQ Stock Market LLC
		CENTRAL INDEX KEY:			0001354457
		IRS NUMBER:				521165937
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		25-NSE

	BUSINESS ADDRESS:	
		STREET 1:		9600 BLACKWELL RD
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850
		BUSINESS PHONE:		301-978-4144

	MAIL ADDRESS:	
		STREET 1:		9600 BLACKWELL RD
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850
</SEC-HEADER>
<DOCUMENT>
<TYPE>25-NSE
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<notificationOfRemoval>

    <schemaVersion>X0203</schemaVersion>

    <exchange>
        <cik>0001354457</cik>
        <entityName>NASDAQ Stock Market LLC</entityName>
    </exchange>

    <issuer>
        <cik>0000736012</cik>
        <entityName>INTRUSION INC</entityName>
        <fileNumber>000-20191</fileNumber>
        <address>
            <street1>1101 East Arapaho Road</street1>
            <street2></street2>
            <city>Richardson</city>
            <stateOrCountryCode>TX</stateOrCountryCode>
            <stateOrCountry>TEXAS</stateOrCountry>
            <zipCode>75081</zipCode>
        </address>
        <telephoneNumber>972-234-6400</telephoneNumber>
    </issuer>

    <descriptionClassSecurity>Common Stock</descriptionClassSecurity>

    <ruleProvision>17 CFR 240.12d2-2(b)</ruleProvision>

    <signatureData>
        <signatureName>Amy Horton</signatureName>
        <signatureTitle>Associate General Counsel</signatureTitle>
        <signatureDate>2007-01-18</signatureDate>
    </signatureData>
</notificationOfRemoval>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.25
<SEQUENCE>2
<FILENAME>intzdelistreason.txt
<TEXT>
Delisting Determination,The Nasdaq Stock Market, LLC, January
18, 2007, Intrusion Inc. The Nasdaq Stock Market, LLC (the
Exchange) has determined to remove from listing the
common stock of Intrusion Inc.(the Company),
effective at the opening of business on January 29, 2007.
Based on a review of the information provided by the Company,
Nasdaq Staff determined that the Company no longer
qualified for listing on the Exchange as it failed to comply
with the following Marketplace Rules: 4310(c)(02). The
Company was notified of Staffs determination on June 14,2006.
The Company requested a review of the
Staffs determination before the Listing Qualifications Hearings
Panel. Upon review of the information provided by the Company,
the Panel determined that the Company did not qualify for
inclusion on the Exchange based on its failure to comply with
the following Marketplace Rules: 4310(c)(02).The Company was
notified of the Panels decision on October 10, 2006 and trading
in the Companys securities was suspended on October 12, 2006.
The Company did not request a review of the Panels decision
by the Nasdaq Listing and Hearing Review Council.  The Listing
Council did not call the matter for review. The
Panels Determination to delist the Company became final on
November 24, 2006.


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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