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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Mf1AdSqFNp4oUMX+moEa6sPt+qiFMJbmPhGZob8ZZCURC6jG2VjcxA76Sn7MUlHR
 lKgeRE0bcrQkbLIRuOmGDQ==

<SEC-DOCUMENT>0000921895-03-001076.txt : 20031231
<SEC-HEADER>0000921895-03-001076.hdr.sgml : 20031231
<ACCEPTANCE-DATETIME>20031231164035
ACCESSION NUMBER:		0000921895-03-001076
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031222
FILED AS OF DATE:		20031231

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PONS ROBERT M
		CENTRAL INDEX KEY:			0001274520

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15288
		FILM NUMBER:		031080783

	MAIL ADDRESS:	
		STREET 1:		439 WILLIAMSON ROAD
		CITY:			GLADWYNE
		STATE:			PA
		ZIP:			19035

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NETWORK 1 SECURITY SOLUTIONS INC
		CENTRAL INDEX KEY:			0001065078
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				113027591
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1601 TRAPELO RD
		STREET 2:		RESERVOIR PLACE
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
		BUSINESS PHONE:		7815223400

	MAIL ADDRESS:	
		STREET 1:		1601 TRAPELO RD
		STREET 2:		RESERVOIR PLACE
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>pon15.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>3</documentType>
	<periodOfReport>2003-12-22</periodOfReport>
    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001065078</issuerCik>
        <issuerName>NETWORK 1 SECURITY SOLUTIONS INC</issuerName>
        <issuerTradingSymbol>NSSI.PK</issuerTradingSymbol>
	</issuer>
	<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001274520</rptOwnerCik>
            <rptOwnerName>PONS ROBERT M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>439 WILLIAMSON ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GLADWYNE</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19035</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
			<isDirector>1</isDirector>
			<isOfficer>0</isOfficer>
			<isTenPercentOwner>0</isTenPercentOwner>
			<isOther>0</isOther>
		</reportingOwnerRelationship>
	</reportingOwner>
	<derivativeTable>
		<derivativeHolding>
			<securityTitle>
				<value>Option to Purchase Common Stock</value>
			</securityTitle>
			<conversionOrExercisePrice>
				<value>0.2100</value>
			</conversionOrExercisePrice>
			<exerciseDate>
				<footnoteId id="F1"/>
			</exerciseDate>
			<expirationDate>
				<value>2013-12-22</value>
			</expirationDate>
			<underlyingSecurity>
				<underlyingSecurityTitle>
					<value>Common Stock, $.01 par value per share</value>
				</underlyingSecurityTitle>
				<underlyingSecurityShares>
					<value>50000</value>
				</underlyingSecurityShares>
			</underlyingSecurity>
			<ownershipNature>
				<directOrIndirectOwnership>
					<value>D</value>
				</directOrIndirectOwnership>
				<natureOfOwnership>
					<value/>
				</natureOfOwnership>
			</ownershipNature>
		</derivativeHolding>
	</derivativeTable>
	<footnotes>
		<footnote id="F1">The shares underlying the Option shall vest on a quarterly basis in equal amounts of 12,500 shares per quarter beginning 90 days after the date of the grant (12/22/03).</footnote>
	</footnotes>
	<ownerSignature>
		<signatureName>/s/ Pons, Robert M.</signatureName>
		<signatureDate>2003-12-30</signatureDate>
	</ownerSignature>
</ownershipDocument>

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