<SEC-DOCUMENT>0001683168-24-005726-index.html : 20240815
<SEC-HEADER>0001683168-24-005726.hdr.sgml : 20240815
<ACCEPTANCE-DATETIME>20240815112738
ACCESSION NUMBER:		0001683168-24-005726
CONFORMED SUBMISSION TYPE:	S-3
PUBLIC DOCUMENT COUNT:		21
FILED AS OF DATE:		20240815
DATE AS OF CHANGE:		20240815

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INTRUSION INC
		CENTRAL INDEX KEY:			0000736012
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		ORGANIZATION NAME:           	06 Technology
		IRS NUMBER:				751911917
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-281565
		FILM NUMBER:		241211135

	BUSINESS ADDRESS:	
		STREET 1:		101 EAST PARK BLVD, SUITE 1200
		CITY:			PLANO
		STATE:			TX
		ZIP:			75074
		BUSINESS PHONE:		9722346400

	MAIL ADDRESS:	
		STREET 1:		101 EAST PARK BLVD, SUITE 1200
		CITY:			PLANO
		STATE:			TX
		ZIP:			75074

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3
<SEQUENCE>1
<FILENAME>intrusion_s3.htm
<DESCRIPTION>S-3
<TEXT>
Document 1 - file: intrusion_s3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.15
<SEQUENCE>2
<FILENAME>intrusion_ex0415.htm
<DESCRIPTION>FORM OF SENIOR INDENTURE
<TEXT>
Document 2 - file: intrusion_ex0415.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.17
<SEQUENCE>3
<FILENAME>intrusion_ex0417.htm
<DESCRIPTION>FORM OF SUBORDINATED INDENTURE
<TEXT>
Document 3 - file: intrusion_ex0417.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>4
<FILENAME>intrusion_ex0501.htm
<DESCRIPTION>OPINION OF ANTHONY, LINDER & CACOMANOLIS, PLLC RELATING TO THEBASE PROSPECTUS.
<TEXT>
Document 4 - file: intrusion_ex0501.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.2
<SEQUENCE>5
<FILENAME>intrusion_ex0502.htm
<DESCRIPTION>OPINION OF ANTHONY, LINDER & CACOMANOLIS, PLLC RELATING TO THEAT-THE-MARKET OFFERING PROSPECTUS SUPPLEMENT.
<TEXT>
Document 5 - file: intrusion_ex0502.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>6
<FILENAME>intrusion_ex2301.htm
<DESCRIPTION>CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
<TEXT>
Document 6 - file: intrusion_ex2301.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-FILING FEES
<SEQUENCE>7
<FILENAME>intrusion_ex107.htm
<DESCRIPTION>CALCULATION OF FILING FEE TABLES
<TEXT>
Document 7 - file: intrusion_ex107.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>image_002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: image_002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>image_001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: image_001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>10
<FILENAME>intz-20240515.xsd
<DESCRIPTION>XBRL SCHEMA FILE
<TEXT>
Document 10 - file: intz-20240515.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>11
<FILENAME>intz-20240515_lab.xml
<DESCRIPTION>XBRL LABEL FILE
<TEXT>
Document 11 - file: intz-20240515_lab.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>12
<FILENAME>intz-20240515_pre.xml
<DESCRIPTION>XBRL PRESENTATION FILE
<TEXT>
Document 12 - file: intz-20240515_pre.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 14 - file: R1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>15
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 15 - file: Financial_Report.xlsx

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>16
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 16 - file: Show.js

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>17
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 17 - file: report.css

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>19
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 19 - file: FilingSummary.html

Document 19 - RAW XML: FilingSummary.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>JSON
<SEQUENCE>21
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 21 - file: MetaLinks.json

</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>22
<FILENAME>0001683168-24-005726-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 22 - file: 0001683168-24-005726-xbrl.zip

</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>23
<FILENAME>intrusion_s3_htm.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 23 - file: intrusion_s3_htm.html

Document 23 - RAW XML: intrusion_s3_htm.xml

</DOCUMENT>
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