diff --git a/src/mesh/Router.cpp b/src/mesh/Router.cpp
index 9bffd7a5d..bac25171b 100644
--- a/src/mesh/Router.cpp
+++ b/src/mesh/Router.cpp
@@ -485,6 +485,20 @@ void Router::handleReceived(meshtastic_MeshPacket *p, RxSource src)
             cancelSending(p->from, p->id);
             skipHandle = true;
         }
+
+#if EVENT_MODE
+        if (p->which_payload_variant == meshtastic_MeshPacket_decoded_tag &&
+            (p->decoded.portnum == meshtastic_PortNum_ATAK_FORWARDER || p->decoded.portnum == meshtastic_PortNum_ATAK_PLUGIN ||
+             p->decoded.portnum == meshtastic_PortNum_PAXCOUNTER_APP || p->decoded.portnum == meshtastic_PortNum_IP_TUNNEL_APP ||
+             p->decoded.portnum == meshtastic_PortNum_AUDIO_APP || p->decoded.portnum == meshtastic_PortNum_PRIVATE_APP ||
+             p->decoded.portnum == meshtastic_PortNum_DETECTION_SENSOR_APP ||
+             p->decoded.portnum == meshtastic_PortNum_RANGE_TEST_APP ||
+             p->decoded.portnum == meshtastic_PortNum_REMOTE_HARDWARE_APP)) {
+            LOG_DEBUG("Ignoring packet on blacklisted portnum during event\n");
+            cancelSending(p->from, p->id);
+            skipHandle = true;
+        }
+#endif
     } else {
         printPacket("packet decoding failed or skipped (no PSK?)", p);
     }