diff --git a/openmetadata-service/src/main/java/org/openmetadata/service/events/subscription/AlertUtil.java b/openmetadata-service/src/main/java/org/openmetadata/service/events/subscription/AlertUtil.java
index dc67fb70ce47..fefdd239ba28 100644
--- a/openmetadata-service/src/main/java/org/openmetadata/service/events/subscription/AlertUtil.java
+++ b/openmetadata-service/src/main/java/org/openmetadata/service/events/subscription/AlertUtil.java
@@ -25,6 +25,7 @@
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
@@ -144,12 +145,8 @@ public static boolean shouldTriggerAlert(ChangeEvent event, FilteringRules confi
     }
 
     // Trigger Specific Settings
-    if (event.getEntityType().equals(THREAD)
-        && (config.getResources().get(0).equals("announcement")
-            || config.getResources().get(0).equals("task")
-            || config.getResources().get(0).equals("conversation"))) {
-      Thread thread = AlertsRuleEvaluator.getThread(event);
-      return config.getResources().get(0).equalsIgnoreCase(thread.getType().value());
+    if (event.getEntityType().equals(THREAD)) {
+      return shouldTriggerAlertForThread(event, config.getResources().get(0));
     }
 
     // Test Suite
@@ -165,6 +162,22 @@ public static boolean shouldTriggerAlert(ChangeEvent event, FilteringRules confi
     return config.getResources().contains(event.getEntityType()); // Use Trigger Specific Settings
   }
 
+  private static final Set<String> THREAD_TYPE_RESOURCES =
+      Set.of("announcement", "task", "conversation");
+
+  private static boolean shouldTriggerAlertForThread(ChangeEvent event, String resource) {
+    Thread thread = AlertsRuleEvaluator.getThread(event);
+    if (thread == null) {
+      return false;
+    }
+    if (THREAD_TYPE_RESOURCES.contains(resource.toLowerCase(Locale.ROOT))) {
+      return resource.equalsIgnoreCase(thread.getType().value());
+    }
+    // Entity-type resource (e.g., "glossaryTerm"): match threads whose parent entity type matches
+    return thread.getEntityRef() != null
+        && resource.equalsIgnoreCase(thread.getEntityRef().getType());
+  }
+
   public static SubscriptionStatus buildSubscriptionStatus(
       SubscriptionStatus.Status status,
       Long lastSuccessful,
diff --git a/openmetadata-service/src/test/java/org/openmetadata/service/events/subscription/AlertUtilTest.java b/openmetadata-service/src/test/java/org/openmetadata/service/events/subscription/AlertUtilTest.java
index 9740b2c3bd75..c47cc6ad1936 100644
--- a/openmetadata-service/src/test/java/org/openmetadata/service/events/subscription/AlertUtilTest.java
+++ b/openmetadata-service/src/test/java/org/openmetadata/service/events/subscription/AlertUtilTest.java
@@ -1,9 +1,20 @@
 package org.openmetadata.service.events.subscription;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
+import java.util.Collections;
 import java.util.List;
+import java.util.UUID;
 import org.junit.jupiter.api.Test;
+import org.openmetadata.schema.entity.events.FilteringRules;
+import org.openmetadata.schema.entity.feed.Thread;
+import org.openmetadata.schema.type.ChangeEvent;
+import org.openmetadata.schema.type.EntityReference;
+import org.openmetadata.schema.type.EventType;
+import org.openmetadata.schema.type.ThreadType;
+import org.openmetadata.service.Entity;
 
 class AlertUtilTest {
 
@@ -67,4 +78,189 @@ void testConvertInputListToString_consecutiveQuotes() {
     String result = AlertUtil.convertInputListToString(input);
     assertEquals("'test''''value'", result);
   }
+
+  // ---- shouldTriggerAlert: null / "all" resource ----------------------------
+
+  @Test
+  void shouldTriggerAlert_nullConfig_returnsTrue() {
+    ChangeEvent event = entityChangeEvent("table");
+    assertTrue(AlertUtil.shouldTriggerAlert(event, null));
+  }
+
+  @Test
+  void shouldTriggerAlert_allResource_returnsTrue() {
+    ChangeEvent event = entityChangeEvent("glossaryTerm");
+    FilteringRules config = filteringRules("all");
+    assertTrue(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  // ---- shouldTriggerAlert: entity change events ----------------------------
+
+  @Test
+  void shouldTriggerAlert_entityEvent_matchingResource_returnsTrue() {
+    ChangeEvent event = entityChangeEvent("glossaryTerm");
+    FilteringRules config = filteringRules("glossaryTerm");
+    assertTrue(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  @Test
+  void shouldTriggerAlert_entityEvent_nonMatchingResource_returnsFalse() {
+    ChangeEvent event = entityChangeEvent("table");
+    FilteringRules config = filteringRules("glossaryTerm");
+    assertFalse(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  // ---- shouldTriggerAlert: thread-type resource ("conversation" etc.) ------
+
+  @Test
+  void shouldTriggerAlert_conversationThread_conversationResource_returnsTrue() {
+    Thread thread =
+        new Thread()
+            .withId(UUID.randomUUID())
+            .withType(ThreadType.Conversation)
+            .withEntityRef(glossaryTermRef());
+    ChangeEvent event = threadChangeEvent(thread, EventType.THREAD_CREATED);
+    FilteringRules config = filteringRules("conversation");
+    assertTrue(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  @Test
+  void shouldTriggerAlert_taskThread_conversationResource_returnsFalse() {
+    Thread thread =
+        new Thread()
+            .withId(UUID.randomUUID())
+            .withType(ThreadType.Task)
+            .withEntityRef(glossaryTermRef());
+    ChangeEvent event = threadChangeEvent(thread, EventType.TASK_CREATED);
+    FilteringRules config = filteringRules("conversation");
+    assertFalse(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  @Test
+  void shouldTriggerAlert_taskThread_taskResource_returnsTrue() {
+    Thread thread =
+        new Thread()
+            .withId(UUID.randomUUID())
+            .withType(ThreadType.Task)
+            .withEntityRef(glossaryTermRef());
+    ChangeEvent event = threadChangeEvent(thread, EventType.TASK_CREATED);
+    FilteringRules config = filteringRules("task");
+    assertTrue(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  @Test
+  void shouldTriggerAlert_announcementThread_announcementResource_returnsTrue() {
+    Thread thread =
+        new Thread()
+            .withId(UUID.randomUUID())
+            .withType(ThreadType.Announcement)
+            .withEntityRef(new EntityReference().withId(UUID.randomUUID()).withType("table"));
+    ChangeEvent event = threadChangeEvent(thread, EventType.THREAD_CREATED);
+    FilteringRules config = filteringRules("announcement");
+    assertTrue(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  // ---- shouldTriggerAlert: entity-type resource for thread events ----------
+  // These are the bug cases: thread events on a GlossaryTerm should fire
+  // when the subscription resource is "glossaryTerm", not just "conversation".
+
+  @Test
+  void shouldTriggerAlert_conversationOnGlossaryTerm_glossaryTermResource_returnsTrue() {
+    Thread thread =
+        new Thread()
+            .withId(UUID.randomUUID())
+            .withType(ThreadType.Conversation)
+            .withEntityRef(glossaryTermRef());
+    ChangeEvent event = threadChangeEvent(thread, EventType.THREAD_CREATED);
+    FilteringRules config = filteringRules("glossaryTerm");
+    assertTrue(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  @Test
+  void shouldTriggerAlert_threadUpdateOnGlossaryTerm_glossaryTermResource_returnsTrue() {
+    Thread thread =
+        new Thread()
+            .withId(UUID.randomUUID())
+            .withType(ThreadType.Conversation)
+            .withEntityRef(glossaryTermRef());
+    ChangeEvent event = threadChangeEvent(thread, EventType.THREAD_UPDATED);
+    FilteringRules config = filteringRules("glossaryTerm");
+    assertTrue(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  @Test
+  void shouldTriggerAlert_postCreatedOnGlossaryTerm_glossaryTermResource_returnsTrue() {
+    Thread thread =
+        new Thread()
+            .withId(UUID.randomUUID())
+            .withType(ThreadType.Conversation)
+            .withEntityRef(glossaryTermRef());
+    ChangeEvent event = threadChangeEvent(thread, EventType.POST_CREATED);
+    FilteringRules config = filteringRules("glossaryTerm");
+    assertTrue(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  @Test
+  void shouldTriggerAlert_threadOnTable_glossaryTermResource_returnsFalse() {
+    Thread thread =
+        new Thread()
+            .withId(UUID.randomUUID())
+            .withType(ThreadType.Conversation)
+            .withEntityRef(new EntityReference().withId(UUID.randomUUID()).withType("table"));
+    ChangeEvent event = threadChangeEvent(thread, EventType.THREAD_CREATED);
+    FilteringRules config = filteringRules("glossaryTerm");
+    assertFalse(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  @Test
+  void shouldTriggerAlert_threadOnTable_tableResource_returnsTrue() {
+    Thread thread =
+        new Thread()
+            .withId(UUID.randomUUID())
+            .withType(ThreadType.Conversation)
+            .withEntityRef(new EntityReference().withId(UUID.randomUUID()).withType("table"));
+    ChangeEvent event = threadChangeEvent(thread, EventType.THREAD_CREATED);
+    FilteringRules config = filteringRules("table");
+    assertTrue(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  @Test
+  void shouldTriggerAlert_threadWithNullEntityRef_entityTypeResource_returnsFalse() {
+    Thread thread =
+        new Thread()
+            .withId(UUID.randomUUID())
+            .withType(ThreadType.Conversation)
+            .withEntityRef(null);
+    ChangeEvent event = threadChangeEvent(thread, EventType.THREAD_CREATED);
+    FilteringRules config = filteringRules("glossaryTerm");
+    assertFalse(AlertUtil.shouldTriggerAlert(event, config));
+  }
+
+  // ---- helpers ---------------------------------------------------------------
+
+  private static ChangeEvent entityChangeEvent(String entityType) {
+    return new ChangeEvent()
+        .withId(UUID.randomUUID())
+        .withEventType(EventType.ENTITY_UPDATED)
+        .withEntityType(entityType);
+  }
+
+  private static ChangeEvent threadChangeEvent(Thread thread, EventType eventType) {
+    return new ChangeEvent()
+        .withId(UUID.randomUUID())
+        .withEventType(eventType)
+        .withEntityType(Entity.THREAD)
+        .withEntity(thread);
+  }
+
+  private static FilteringRules filteringRules(String resource) {
+    return new FilteringRules()
+        .withResources(List.of(resource))
+        .withRules(Collections.emptyList())
+        .withActions(Collections.emptyList());
+  }
+
+  private static EntityReference glossaryTermRef() {
+    return new EntityReference().withId(UUID.randomUUID()).withType("glossaryTerm");
+  }
 }