diff --git a/pkg/security/risks/builtin/missing_hardening_rule_test.go b/pkg/security/risks/builtin/missing_hardening_rule_test.go
new file mode 100644
index 00000000..84df176f
--- /dev/null
+++ b/pkg/security/risks/builtin/missing_hardening_rule_test.go
@@ -0,0 +1,158 @@
+package builtin
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/threagile/threagile/pkg/security/types"
+)
+
+func TestMissingHardeningRuleGenerateRisksEmptyModelNotRisksCreated(t *testing.T) {
+	rule := NewMissingHardeningRule()
+
+	risks, err := rule.GenerateRisks(&types.Model{})
+
+	assert.Nil(t, err)
+	assert.Empty(t, risks)
+}
+
+type MissingHardeningRuleNoRisksTest struct {
+	raa                int
+	technicalAssetType types.TechnicalAssetType
+	enabledAttribute   string
+}
+
+func TestMissingHardeningRuleNoRisksCreated(t *testing.T) {
+	testCases := map[string]MissingHardeningRuleNoRisksTest{
+		"raa less limit for data store": {
+			raa:                39,
+			technicalAssetType: types.Datastore,
+			enabledAttribute:   types.IsDevelopmentRelevant,
+		},
+		"raa less limit for high value target": {
+			raa:                39,
+			technicalAssetType: types.Process,
+			enabledAttribute:   types.IsHighValueTarget,
+		},
+		"raa less reduced limit for not data store or high value target": {
+			raa:                54,
+			technicalAssetType: types.Process,
+			enabledAttribute:   "any other",
+		},
+	}
+
+	for name, testCase := range testCases {
+		t.Run(name, func(t *testing.T) {
+			rule := NewMissingHardeningRule()
+			input := &types.Model{
+				TechnicalAssets: map[string]*types.TechnicalAsset{
+					"ta1": {
+						Id:    "ta1",
+						Title: "Test Technical Asset",
+						Type:  testCase.technicalAssetType,
+						Technologies: types.TechnologyList{
+							{
+								Name:       "some-technology",
+								Attributes: map[string]bool{},
+							},
+						},
+					},
+				},
+			}
+			input.TechnicalAssets["ta1"].RAA = float64(testCase.raa)
+			tech := input.TechnicalAssets["ta1"].Technologies[0]
+			tech.Attributes[testCase.enabledAttribute] = true
+			risks, err := rule.GenerateRisks(input)
+
+			assert.Nil(t, err)
+			assert.Empty(t, risks)
+		})
+	}
+}
+
+type MissingHardeningRuleRisksCreatedTest struct {
+	raa                int
+	technicalAssetType types.TechnicalAssetType
+	enabledAttribute   string
+	confidentiality    types.Confidentiality
+	integrity          types.Criticality
+
+	expectedImpact types.RiskExploitationImpact
+}
+
+func TestMissingHardeningRuleRisksCreated(t *testing.T) {
+	testCases := map[string]MissingHardeningRuleRisksCreatedTest{
+		"raa higher reduced limit for data store": {
+			raa:                40,
+			technicalAssetType: types.Datastore,
+			enabledAttribute:   types.IsDevelopmentRelevant,
+			expectedImpact:     types.LowImpact,
+		},
+		"raa higher reduced limit for high value target": {
+			raa:                40,
+			technicalAssetType: types.Process,
+			enabledAttribute:   types.IsHighValueTarget,
+			expectedImpact:     types.LowImpact,
+		},
+		"raa higher limit for not high value target or data store": {
+			raa:                55,
+			technicalAssetType: types.Process,
+			enabledAttribute:   types.IsDevelopmentRelevant,
+			expectedImpact:     types.LowImpact,
+		},
+		"process strictly confidential data": {
+			raa:                55,
+			technicalAssetType: types.Datastore,
+			enabledAttribute:   types.IsHighValueTarget,
+			confidentiality:    types.StrictlyConfidential,
+			integrity:          types.Critical,
+			expectedImpact:     types.MediumImpact,
+		},
+		"process mission critical integrity data": {
+			raa:                55,
+			technicalAssetType: types.Datastore,
+			enabledAttribute:   types.IsHighValueTarget,
+			confidentiality:    types.Confidential,
+			integrity:          types.MissionCritical,
+			expectedImpact:     types.MediumImpact,
+		},
+	}
+
+	for name, testCase := range testCases {
+		t.Run(name, func(t *testing.T) {
+			rule := NewMissingHardeningRule()
+			input := &types.Model{
+				TechnicalAssets: map[string]*types.TechnicalAsset{
+					"ta1": {
+						Id:    "ta1",
+						Title: "Test Technical Asset",
+						Type:  types.Datastore,
+						Technologies: types.TechnologyList{
+							{
+								Name:       "some-technology",
+								Attributes: map[string]bool{},
+							},
+						},
+						DataAssetsProcessed: []string{"da1"},
+					},
+				},
+				DataAssets: map[string]*types.DataAsset{
+					"da1": {
+						Title:           "Test Data Asset",
+						Confidentiality: testCase.confidentiality,
+						Integrity:       testCase.integrity,
+					},
+				},
+			}
+			input.TechnicalAssets["ta1"].RAA = float64(testCase.raa)
+			tech := input.TechnicalAssets["ta1"].Technologies[0]
+			tech.Attributes[testCase.enabledAttribute] = true
+			risks, err := rule.GenerateRisks(input)
+
+			assert.Nil(t, err)
+			assert.Len(t, risks, 1)
+			assert.Equal(t, testCase.expectedImpact, risks[0].ExploitationImpact)
+			assert.Equal(t, "<b>Missing Hardening</b> risk at <b>Test Technical Asset</b>", risks[0].Title)
+		})
+	}
+}