<SEC-DOCUMENT>0001683168-20-003346-index.html : 20201005
<SEC-HEADER>0001683168-20-003346.hdr.sgml : 20201005
<ACCEPTANCE-DATETIME>20201005073233
ACCESSION NUMBER:		0001683168-20-003346
CONFORMED SUBMISSION TYPE:	S-1/A
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20201005
DATE AS OF CHANGE:		20201005

FILER:

	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:		S-1/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-248398
		FILM NUMBER:		201222316

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-1/A
<SEQUENCE>1
<FILENAME>intrusion_s1a1.htm
<DESCRIPTION>AMENDMENT NO. 1 TO REGISTRATION STATEMENT
<TEXT>
Document 1 - file: intrusion_s1a1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-1.1
<SEQUENCE>2
<FILENAME>intrusion_ex0101.htm
<DESCRIPTION>FORM OF UNDERWRITING AGREEMENT
<TEXT>
Document 2 - file: intrusion_ex0101.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>intrusion_ex0501.htm
<DESCRIPTION>LEGAL OPINION
<TEXT>
Document 3 - file: intrusion_ex0501.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>intrusion_ex2301.htm
<DESCRIPTION>CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
<TEXT>
Document 4 - file: intrusion_ex2301.htm

</DOCUMENT>
</SEC-DOCUMENT>