diff --git a/dd-java-agent/agent-crashtracking/src/main/java/datadog/crashtracking/parsers/HotspotCrashLogParser.java b/dd-java-agent/agent-crashtracking/src/main/java/datadog/crashtracking/parsers/HotspotCrashLogParser.java
index 33985ebc65c..0c01f6b57a9 100644
--- a/dd-java-agent/agent-crashtracking/src/main/java/datadog/crashtracking/parsers/HotspotCrashLogParser.java
+++ b/dd-java-agent/agent-crashtracking/src/main/java/datadog/crashtracking/parsers/HotspotCrashLogParser.java
@@ -550,9 +550,12 @@ public CrashLog parse(String uuid, String crashLog) {
     if (oomMessage != null) {
       kind = "OutOfMemory";
       message = oomMessage;
-    } else {
-      kind = sigInfo != null && sigInfo.name != null ? sigInfo.name : "UNKNOWN";
+    } else if (sigInfo != null && sigInfo.name != null) {
+      kind = sigInfo.name;
       message = "Process terminated by signal " + kind;
+    } else {
+      kind = "InternalError";
+      message = "Process terminated by Internal error";
     }
 
     final List<StackFrame> enrichedFrames = new ArrayList<>(frames.size());
diff --git a/dd-java-agent/agent-crashtracking/src/main/java/datadog/crashtracking/parsers/J9JavacoreParser.java b/dd-java-agent/agent-crashtracking/src/main/java/datadog/crashtracking/parsers/J9JavacoreParser.java
index 1d7214dde6d..f13896b0dca 100644
--- a/dd-java-agent/agent-crashtracking/src/main/java/datadog/crashtracking/parsers/J9JavacoreParser.java
+++ b/dd-java-agent/agent-crashtracking/src/main/java/datadog/crashtracking/parsers/J9JavacoreParser.java
@@ -257,8 +257,8 @@ public CrashLog parse(String uuid, String javacoreContent) {
               : eventType.toUpperCase(Locale.ROOT);
       message = "Process terminated by signal " + kind;
     } else {
-      kind = "UNKNOWN";
-      message = "Unknown crash event";
+      kind = "InternalError";
+      message = "Process terminated by Internal error";
     }
 
     // Enrich frames with build IDs (best effort)
diff --git a/dd-java-agent/agent-crashtracking/src/test/java/datadog/crashtracking/parsers/HotspotCrashLogParserTest.java b/dd-java-agent/agent-crashtracking/src/test/java/datadog/crashtracking/parsers/HotspotCrashLogParserTest.java
index 0abe9c8921d..2008ac78e05 100644
--- a/dd-java-agent/agent-crashtracking/src/test/java/datadog/crashtracking/parsers/HotspotCrashLogParserTest.java
+++ b/dd-java-agent/agent-crashtracking/src/test/java/datadog/crashtracking/parsers/HotspotCrashLogParserTest.java
@@ -49,6 +49,8 @@ public void testIncompleteParsing() throws Exception {
     assertNotNull(crashLog.error.stack);
     assertNotNull(crashLog.error.stack.frames);
     assertEquals(0, crashLog.error.stack.frames.length);
+    assertEquals("InternalError", crashLog.error.kind);
+    assertEquals("Process terminated by Internal error", crashLog.error.message);
   }
 
   /** macOS aarch64 uses lowercase register names: x0-x28, fp, lr, sp, pc, cpsr */
@@ -335,6 +337,25 @@ public void testParseCurrentThreadName(String line, String expected) {
         HotspotCrashLogParser.parseCurrentThreadName(line));
   }
 
+  @Test
+  public void testNoSignalProducesInternalError() throws Exception {
+    // A crash log that reaches the PROCESS section but has no siginfo line
+    String crashLog =
+        "# A fatal error has been detected by the Java Runtime Environment:\n"
+            + "#\n"
+            + "# Core dump will be written.\n"
+            + "---------------  T H R E A D  ---------------\n"
+            + "Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)\n"
+            + "---------------  P R O C E S S  ---------------\n";
+
+    CrashLog result = new HotspotCrashLogParser().parse(UUID.randomUUID().toString(), crashLog);
+
+    assertNotNull(result);
+    assertFalse(result.incomplete);
+    assertEquals("InternalError", result.error.kind);
+    assertEquals("Process terminated by Internal error", result.error.message);
+  }
+
   private String readFileAsString(String resource) throws IOException {
     try (InputStream stream = getClass().getClassLoader().getResourceAsStream(resource)) {
       return new BufferedReader(
diff --git a/dd-java-agent/agent-crashtracking/src/test/java/datadog/crashtracking/parsers/J9JavacoreParserTest.java b/dd-java-agent/agent-crashtracking/src/test/java/datadog/crashtracking/parsers/J9JavacoreParserTest.java
index 63ffe0fbe10..cab2a9a457e 100644
--- a/dd-java-agent/agent-crashtracking/src/test/java/datadog/crashtracking/parsers/J9JavacoreParserTest.java
+++ b/dd-java-agent/agent-crashtracking/src/test/java/datadog/crashtracking/parsers/J9JavacoreParserTest.java
@@ -212,6 +212,24 @@ public void testDateTimeParsing() throws Exception {
         "Expected ISO-8601 format, got: " + crashLog.timestamp);
   }
 
+  @Test
+  public void testNoSignalProducesInternalError() throws Exception {
+    // A javacore with a THREADS section but no 1TISIGINFO line
+    String javacoreContent =
+        "0SECTION       TITLE subcomponent dump routine\n"
+            + "NULL           ===============================\n"
+            + "1TICHARSET     UTF-8\n"
+            + "NULL           ------------------------------------------------------------------------\n"
+            + "0SECTION       THREADS subcomponent dump routine\n"
+            + "NULL           =================================\n";
+
+    CrashLog result = new J9JavacoreParser().parse(UUID.randomUUID().toString(), javacoreContent);
+
+    assertNotNull(result);
+    assertEquals("InternalError", result.error.kind);
+    assertEquals("Process terminated by Internal error", result.error.message);
+  }
+
   private String readFileAsString(String resource) throws IOException {
     try (InputStream stream = getClass().getClassLoader().getResourceAsStream(resource)) {
       return new BufferedReader(