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  <xs:element id="tenb_DebtInstrumentCovenantLeverageRatio" abstract="false" name="DebtInstrumentCovenantLeverageRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="tenb_CymptomMember" abstract="true" name="CymptomMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_StockIssuedDuringPeriodSharesPerformanceStockUnit" abstract="false" name="StockIssuedDuringPeriodSharesPerformanceStockUnit" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="tenb_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAveragePerformanceAdjustmentDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAveragePerformanceAdjustmentDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="tenb_EffectiveIncomeTaxRateReconciliationForeignDeferredFXRemeasurementPercent" abstract="false" name="EffectiveIncomeTaxRateReconciliationForeignDeferredFXRemeasurementPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="tenb_CollateralForLettersOfCreditMember" abstract="true" name="CollateralForLettersOfCreditMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalSharesReserved" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalSharesReserved" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="tenb_NumberOfRenewalOptions" abstract="false" name="NumberOfRenewalOptions" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tenb_DebtInstrumentCovenantPercentDrawnOnLineOfCreditMinimum" abstract="false" name="DebtInstrumentCovenantPercentDrawnOnLineOfCreditMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="tenb_LesseeOperatingLeaseOptionsToTerminate" abstract="false" name="LesseeOperatingLeaseOptionsToTerminate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tenb_StockIssuedDuringPeriodSharesRestrictedStockUnit" abstract="false" name="StockIssuedDuringPeriodSharesRestrictedStockUnit" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="tenb_December2023TradingPlanSharesHeldByAmitYoranMember" abstract="true" name="December2023TradingPlanSharesHeldByAmitYoranMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_DebtInstrumentCovenantLeverageRatioMaximum" abstract="false" name="DebtInstrumentCovenantLeverageRatioMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="tenb_AdjustmentsToAdditionalPaidInCapitalFairValueOfReplacementEquityAttributableToPreAcquisitionService" abstract="false" name="AdjustmentsToAdditionalPaidInCapitalFairValueOfReplacementEquityAttributableToPreAcquisitionService" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_YankeeBondMember" abstract="true" name="YankeeBondMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_CreditAgreementMember" abstract="true" name="CreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_ShareBasedCompensationArrangementByShareBasedPaymentAwardTerminationContingencyNewPurchasePeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardTerminationContingencyNewPurchasePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tenb_DepreciationAndAmortizationPropertyAndEquipment" abstract="false" name="DepreciationAndAmortizationPropertyAndEquipment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_SAFEInvestmentsCarryingValue" abstract="false" name="SAFEInvestmentsCarryingValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_FederalAndStateMember" abstract="true" name="FederalAndStateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_MicrosoftMember" abstract="true" name="MicrosoftMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_PurchaseObligationAmountSpent" abstract="false" name="PurchaseObligationAmountSpent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_AuditInformationAbstract" abstract="true" name="AuditInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="tenb_CapitalizedContractCostRollForward" abstract="true" name="CapitalizedContractCostRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="tenb_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfFairMarketValueOnOfferingDateOrPurchaseDate" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfFairMarketValueOnOfferingDateOrPurchaseDate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="tenb_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract" abstract="true" name="RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="tenb_RevenueRecognitionMinimumYearsOfMaintenanceIncludedInConctract" abstract="false" name="RevenueRecognitionMinimumYearsOfMaintenanceIncludedInConctract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tenb_December2023TradingPlanSharesHeldByAmitYoran2020FamilyTrustMember" abstract="true" name="December2023TradingPlanSharesHeldByAmitYoran2020FamilyTrustMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_AmazonWebServicesAWSMember" abstract="true" name="AmazonWebServicesAWSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_BusinessCombinationGoodwillAndIntangibleAssetsDisclosureTextBlock" abstract="false" name="BusinessCombinationGoodwillAndIntangibleAssetsDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="tenb_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherLiabilitiesNet" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherLiabilitiesNet" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_AmitYoranMember" abstract="true" name="AmitYoranMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_MaintenanceRenewalPeriod" abstract="false" name="MaintenanceRenewalPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tenb_UnrecognizedTaxBenefitsChangeInTaxExpenseBenefitIfRecognized" abstract="false" name="UnrecognizedTaxBenefitsChangeInTaxExpenseBenefitIfRecognized" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_NumberOfImpairedInvestments" abstract="false" name="NumberOfImpairedInvestments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tenb_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPerformanceAdjustment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="tenb_SupranationalBondsMember" abstract="true" name="SupranationalBondsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_StephenVintzMember" abstract="true" name="StephenVintzMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_SalesMethodRiskMember" abstract="true" name="SalesMethodRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tenb_RestrictedShareAwardsMember" abstract="true" name="RestrictedShareAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_EffectiveIncomeTaxRateReconciliationTransactionCosts" abstract="false" name="EffectiveIncomeTaxRateReconciliationTransactionCosts" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="tenb_CapitalizedContractCostIncreaseFromCapitalizationOfCosts" abstract="false" name="CapitalizedContractCostIncreaseFromCapitalizationOfCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_StockIssuedDuringPeriodValueRestrictedStockUnit" abstract="false" name="StockIssuedDuringPeriodValueRestrictedStockUnit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tenb_SecuredOvernightFinancingRateSOFRMember" abstract="true" name="SecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tenb_DebtInstrumentAnnualAmortizationPercent" abstract="false" name="DebtInstrumentAnnualAmortizationPercent" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
</xs:schema>
