diff --git a/src/main/jbhook-util/security.h b/src/main/jbhook-util/security.h
deleted file mode 100644
index 12b3651..0000000
--- a/src/main/jbhook-util/security.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef JBHOOK_UTIL_SECURITY_H
-#define JBHOOK_UTIL_SECURITY_H
-
-#include "security/mcode.h"
-
-static const struct security_mcode jbhook_util_security_default_mcode = {
-    .header = SECURITY_MCODE_HEADER,
-    .unkn = SECURITY_MCODE_UNKN_C,
-    .game = SECURITY_MCODE_GAME_JB_1,
-    .region = SECURITY_MCODE_REGION_JAPAN,
-    .cabinet = SECURITY_MCODE_CABINET_A,
-    .revision = SECURITY_MCODE_REVISION_B,
-};
-
-#endif
diff --git a/src/main/jbhook1/config-security.c b/src/main/jbhook1/config-security.c
index 5d13447..f7069a5 100644
--- a/src/main/jbhook1/config-security.c
+++ b/src/main/jbhook1/config-security.c
@@ -4,8 +4,6 @@
 
 #include "jbhook1/config-security.h"
 
-#include "jbhook-util/security.h"
-
 #include "security/mcode.h"
 
 #include "util/log.h"
@@ -13,14 +11,20 @@
 
 #define JBHOOK1_CONFIG_SECURITY_MCODE_KEY "security.mcode"
 
-#define JBHOOK1_CONFIG_SECURITY_DEFAULT_MCODE_VALUE \
-    jbhook_util_security_default_mcode
+static const struct security_mcode security_mcode_h44 = {
+    .header = SECURITY_MCODE_HEADER,
+    .unkn = SECURITY_MCODE_UNKN_C,
+    .game = SECURITY_MCODE_GAME_JB_1,
+    .region = SECURITY_MCODE_REGION_JAPAN,
+    .cabinet = SECURITY_MCODE_CABINET_A,
+    .revision = SECURITY_MCODE_REVISION_B,
+};
 
 void jbhook1_config_security_init(struct cconfig *config)
 {
     char *tmp;
 
-    tmp = security_mcode_to_str(&JBHOOK1_CONFIG_SECURITY_DEFAULT_MCODE_VALUE);
+    tmp = security_mcode_to_str(&security_mcode_h44);
 
     cconfig_util_set_str(
         config,
@@ -38,7 +42,7 @@ void jbhook1_config_security_get(
     char mcode[9];
 
     tmp_default =
-        security_mcode_to_str(&JBHOOK1_CONFIG_SECURITY_DEFAULT_MCODE_VALUE);
+        security_mcode_to_str(&security_mcode_h44);
 
     if (!cconfig_util_get_str(
             config,
@@ -63,7 +67,7 @@ void jbhook1_config_security_get(
 
         memcpy(
             &config_security->mcode,
-            &JBHOOK1_CONFIG_SECURITY_DEFAULT_MCODE_VALUE,
+            &security_mcode_h44,
             sizeof(struct security_mcode));
     }
 
diff --git a/src/main/jbhook2/dllmain.c b/src/main/jbhook2/dllmain.c
index 69ca089..0f20ed0 100644
--- a/src/main/jbhook2/dllmain.c
+++ b/src/main/jbhook2/dllmain.c
@@ -24,7 +24,6 @@
 #include "jbhook-util/eamuse.h"
 #include "jbhook-util/gfx.h"
 #include "jbhook-util/p3io.h"
-#include "jbhook-util/security.h"
 
 #include "p3ioemu/devmgr.h"
 #include "p3ioemu/emu.h"
@@ -33,6 +32,7 @@
 #include "p4ioemu/setupapi.h"
 
 #include "security/id.h"
+#include "security/mcode.h"
 
 #include "util/defs.h"
 #include "util/log.h"
@@ -40,6 +40,15 @@
 
 static struct options options;
 
+static const struct security_mcode security_mcode_j44 = {
+    .header = SECURITY_MCODE_HEADER,
+    .unkn = SECURITY_MCODE_UNKN_C,
+    .game = SECURITY_MCODE_GAME_JB_3,
+    .region = SECURITY_MCODE_REGION_JAPAN,
+    .cabinet = SECURITY_MCODE_CABINET_C,
+    .revision = SECURITY_MCODE_REVISION_A,
+};
+
 static bool my_dll_entry_init(char *sidcode, struct property_node *param)
 {
     bool eam_io_ok;
@@ -57,9 +66,11 @@ static bool my_dll_entry_init(char *sidcode, struct property_node *param)
     if (!options.disable_p3ioemu) {
         log_assert(sidcode != NULL);
         // pcbid and eamid are only used here for sec check, the ones used for
-        // network access are taken from ea3-config.xml
+        // network access are taken from ea3-config.xml.
+        // When booting knit append (and on no other version), the code must
+        // actually match, so the ID used is for append (JCA)
         jbhook_util_p3io_init(
-            &jbhook_util_security_default_mcode,
+            &security_mcode_j44,
             &security_id_default, &security_id_default);
 
         log_info("Starting up jubeat IO backend");
diff --git a/src/main/jbhook3/dllmain.c b/src/main/jbhook3/dllmain.c
index a210fd0..f88865f 100644
--- a/src/main/jbhook3/dllmain.c
+++ b/src/main/jbhook3/dllmain.c
@@ -23,7 +23,6 @@
 #include "jbhook-util/eamuse.h"
 #include "jbhook-util/gfx.h"
 #include "jbhook-util/p4io.h"
-#include "jbhook-util/security.h"
 
 #include "p4ioemu/device.h"
 #include "p4ioemu/setupapi.h"
diff --git a/src/main/security/mcode.h b/src/main/security/mcode.h
index 18ea491..6a9b4bd 100644
--- a/src/main/security/mcode.h
+++ b/src/main/security/mcode.h
@@ -51,6 +51,7 @@
 
 /* Jubeat */
 #define SECURITY_MCODE_GAME_JB_1 "H44"
+#define SECURITY_MCODE_GAME_JB_3 "J44"
 
 /* Region */
 #define SECURITY_MCODE_REGION_ASIA 'A'
@@ -58,6 +59,7 @@
 
 /* Cabinet */
 #define SECURITY_MCODE_CABINET_A 'A'
+#define SECURITY_MCODE_CABINET_C 'C'
 
 /* Revision */
 #define SECURITY_MCODE_REVISION_A 'A'
@@ -104,4 +106,4 @@ bool security_mcode_parse(const char *str, struct security_mcode *mcode);
  */
 char *security_mcode_to_str(const struct security_mcode *mcode);
 
-#endif
\ No newline at end of file
+#endif