diff --git a/checker/generator/checks.go b/checker/generator/checks.go
index e098f5a8..4d8744dd 100644
--- a/checker/generator/checks.go
+++ b/checker/generator/checks.go
@@ -82,7 +82,8 @@ func getHierarchyMessage(hierarchy []string, atttibuted []bool) string {
 }
 
 func isTopLevel(s string) bool {
-	return s == "request body" || s == "paths"
+	return s == "request body" ||
+		s == "paths"
 }
 
 func standardizeSpaces(s string) string {
@@ -110,6 +111,8 @@ func conjugate(verb string) string {
 		return "set"
 	case "add":
 		return "added"
+	case "become":
+		return "became"
 	}
 	return verb + "d"
 }
diff --git a/checker/generator/data.go b/checker/generator/data.go
index fefd4562..3505a8bb 100644
--- a/checker/generator/data.go
+++ b/checker/generator/data.go
@@ -7,6 +7,7 @@ func getAll() ValueSets {
 		getPaths(),
 		getRequest(),
 		getResponse(),
+		getComponents(),
 	)
 }
 
@@ -29,6 +30,33 @@ func getPaths() ValueSets {
 	return NewValueSets(nil, nil, pathsValueSets)
 }
 
+func getComponents() ValueSets {
+	return slices.Concat(
+		getSecurity(),
+	)
+}
+
+func getSecurity() ValueSets {
+	return NewValueSets(nil, nil, securityValueSets)
+}
+
+var securityValueSets = ValueSets{
+	ValueSetB{
+		adjective:     "%s",
+		adjectiveType: PREDICATIVE,
+		nouns:         []string{"endpoint scheme security"},
+		actions:       []string{"add", "remove"},
+	},
+	ValueSetB{
+		adjective:     "%s",
+		adjectiveType: PREDICATIVE,
+		hierarchy:     []string{"global security scheme"},
+		attributed:    []bool{false},
+		nouns:         []string{"security scope"},
+		actions:       []string{"add", "remove"},
+	},
+}
+
 var pathsValueSets = ValueSets{
 	ValueSetB{
 		adjective:     "%s",
@@ -36,6 +64,15 @@ var pathsValueSets = ValueSets{
 		nouns:         []string{"success response status", "non-success response status"},
 		actions:       []string{"add", "remove"},
 	},
+	ValueSetB{
+		adjective:     "%s",
+		adjectiveType: PREDICATIVE,
+		hierarchy:     []string{"endpoint security scheme"},
+		attributed:    []bool{false},
+		nouns:         []string{"security scope"},
+		actions:       []string{"add", "remove"},
+	},
+	// security scope %s was added to endpoint security scheme %s
 }
 
 var schemaValueSets = ValueSets{
@@ -57,6 +94,10 @@ var schemaValueSets = ValueSets{
 		nouns:   []string{"pattern"},
 		actions: []string{"change"},
 	},
+	ValueSetA{
+		nouns:   []string{"required property", "optional property"},
+		actions: []string{"change"},
+	},
 	ValueSetB{
 		adjective:     "%s",
 		adjectiveType: PREDICATIVE,
diff --git a/checker/generator/messages.yaml b/checker/generator/messages.yaml
index f7af70fa..d43c10a9 100644
--- a/checker/generator/messages.yaml
+++ b/checker/generator/messages.yaml
@@ -2,6 +2,8 @@ success-response-status-added: added success response status %s
 success-response-status-removed: removed success response status %s
 non-success-response-status-added: added non-success response status %s
 non-success-response-status-removed: removed non-success response status %s
+endpoint-security-scheme-security-scope-added: added security scope %s to endpoint security scheme %s
+endpoint-security-scheme-security-scope-removed: removed security scope %s from endpoint security scheme %s
 request-body-media-type-max-set: max value of media-type %s of request body was set to %s
 request-body-media-type-max-increased: max value of media-type %s of request body was increased from %s to %s
 request-body-media-type-max-decreased: max value of media-type %s of request body was decreased from %s to %s
@@ -24,6 +26,8 @@ request-body-media-type-type-changed: type/format of media-type %s of request bo
 request-body-media-type-type-generalized: type/format of media-type %s of request body was generalized from %s to %s
 request-body-media-type-discriminator-property-name-changed: discriminator property name of media-type %s of request body was changed from %s to %s
 request-body-media-type-pattern-changed: pattern of media-type %s of request body was changed from %s to %s
+request-body-media-type-required-property-changed: required property of media-type %s of request body was changed from %s to %s
+request-body-media-type-optional-property-changed: optional property of media-type %s of request body was changed from %s to %s
 request-body-media-type-pattern-added: added pattern %s to media-type %s of request body
 request-body-media-type-pattern-removed: removed pattern %s from media-type %s of request body
 request-body-media-type-default-value-added: added default value to media-type %s of request body
@@ -60,6 +64,8 @@ request-body-media-type-property-type-changed: type/format of property %s of med
 request-body-media-type-property-type-generalized: type/format of property %s of media-type %s of request body was generalized from %s to %s
 request-body-media-type-property-discriminator-property-name-changed: discriminator property name of property %s of media-type %s of request body was changed from %s to %s
 request-body-media-type-property-pattern-changed: pattern of property %s of media-type %s of request body was changed from %s to %s
+request-body-media-type-property-required-property-changed: required property of property %s of media-type %s of request body was changed from %s to %s
+request-body-media-type-property-optional-property-changed: optional property of property %s of media-type %s of request body was changed from %s to %s
 request-body-media-type-property-pattern-added: added pattern %s to property %s of media-type %s of request body
 request-body-media-type-property-pattern-removed: removed pattern %s from property %s of media-type %s of request body
 request-body-media-type-property-default-value-added: added default value to property %s of media-type %s of request body
@@ -96,6 +102,8 @@ request-parameter-type-changed: type/format of %s request parameter %s was chang
 request-parameter-type-generalized: type/format of %s request parameter %s was generalized from %s to %s
 request-parameter-discriminator-property-name-changed: discriminator property name of %s request parameter %s was changed from %s to %s
 request-parameter-pattern-changed: pattern of %s request parameter %s was changed from %s to %s
+request-parameter-required-property-changed: required property of %s request parameter %s was changed from %s to %s
+request-parameter-optional-property-changed: optional property of %s request parameter %s was changed from %s to %s
 request-parameter-pattern-added: added pattern %s to %s request parameter %s
 request-parameter-pattern-removed: removed pattern %s from %s request parameter %s
 request-parameter-default-value-added: added default value to %s request parameter %s
@@ -132,6 +140,8 @@ response-media-type-type-changed: type/format of media-type %s of response %s wa
 response-media-type-type-generalized: type/format of media-type %s of response %s was generalized from %s to %s
 response-media-type-discriminator-property-name-changed: discriminator property name of media-type %s of response %s was changed from %s to %s
 response-media-type-pattern-changed: pattern of media-type %s of response %s was changed from %s to %s
+response-media-type-required-property-changed: required property of media-type %s of response %s was changed from %s to %s
+response-media-type-optional-property-changed: optional property of media-type %s of response %s was changed from %s to %s
 response-media-type-pattern-added: added pattern %s to media-type %s of response %s
 response-media-type-pattern-removed: removed pattern %s from media-type %s of response %s
 response-media-type-default-value-added: added default value to media-type %s of response %s
@@ -168,6 +178,8 @@ response-media-type-property-type-changed: type/format of property %s of media-t
 response-media-type-property-type-generalized: type/format of property %s of media-type %s of response %s was generalized from %s to %s
 response-media-type-property-discriminator-property-name-changed: discriminator property name of property %s of media-type %s of response %s was changed from %s to %s
 response-media-type-property-pattern-changed: pattern of property %s of media-type %s of response %s was changed from %s to %s
+response-media-type-property-required-property-changed: required property of property %s of media-type %s of response %s was changed from %s to %s
+response-media-type-property-optional-property-changed: optional property of property %s of media-type %s of response %s was changed from %s to %s
 response-media-type-property-pattern-added: added pattern %s to property %s of media-type %s of response %s
 response-media-type-property-pattern-removed: removed pattern %s from property %s of media-type %s of response %s
 response-media-type-property-default-value-added: added default value to property %s of media-type %s of response %s
@@ -182,3 +194,7 @@ response-media-type-property-discriminator-added: added discriminator %s to prop
 response-media-type-property-discriminator-removed: removed discriminator %s from property %s of media-type %s of response %s
 response-media-type-property-mapping-keys-added: added mapping keys %s to property %s of media-type %s of response %s
 response-media-type-property-mapping-keys-removed: removed mapping keys %s from property %s of media-type %s of response %s
+endpoint-scheme-security-added: added endpoint scheme security %s
+endpoint-scheme-security-removed: removed endpoint scheme security %s
+global-security-scheme-security-scope-added: added security scope %s to global security scheme %s
+global-security-scheme-security-scope-removed: removed security scope %s from global security scheme %s