diff --git a/ecal/core/src/serialization/ecal_serialize_logging.cpp b/ecal/core/src/serialization/ecal_serialize_logging.cpp
index 8cc69fdfe3..ef67992538 100644
--- a/ecal/core/src/serialization/ecal_serialize_logging.cpp
+++ b/ecal/core/src/serialization/ecal_serialize_logging.cpp
@@ -1,6 +1,6 @@
 /* ========================= eCAL LICENSE =================================
  *
- * Copyright (C) 2016 - 2019 Continental Corporation
+ * Copyright (C) 2016 - 2024 Continental Corporation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -157,6 +157,7 @@ namespace
     if (!pb_decode(&pb_istream, eCAL_pb_LogMessage_fields, &pb_log_message))
     {
       std::cerr << "NanoPb eCAL::Logging::LogMessage decode failed: " << pb_istream.errmsg << '\n';
+      return false;
     }
 
     ///////////////////////////////////////////////
@@ -293,6 +294,7 @@ namespace
     if (!pb_decode(&pb_istream, eCAL_pb_LogMessageList_fields, &pb_log_message_list))
     {
       std::cerr << "NanoPb eCAL::Logging::LogMessageList decode failed: " << pb_istream.errmsg << '\n';
+      return false;
     }
 
     return true;
diff --git a/ecal/core/src/serialization/ecal_serialize_monitoring.cpp b/ecal/core/src/serialization/ecal_serialize_monitoring.cpp
index bdfacd137e..5e0bd04a52 100644
--- a/ecal/core/src/serialization/ecal_serialize_monitoring.cpp
+++ b/ecal/core/src/serialization/ecal_serialize_monitoring.cpp
@@ -894,6 +894,7 @@ namespace
     if (!pb_decode(&pb_istream, eCAL_pb_Monitoring_fields, &pb_mon_message))
     {
       std::cerr << "NanoPb eCAL::Monitoring::SMonitoring decode failed: " << pb_istream.errmsg << '\n';
+      return false;
     }
 
     return true;
diff --git a/ecal/core/src/serialization/ecal_serialize_sample_payload.cpp b/ecal/core/src/serialization/ecal_serialize_sample_payload.cpp
index 1f8caf4106..45e2b92006 100644
--- a/ecal/core/src/serialization/ecal_serialize_sample_payload.cpp
+++ b/ecal/core/src/serialization/ecal_serialize_sample_payload.cpp
@@ -1,6 +1,6 @@
 /* ========================= eCAL LICENSE =================================
  *
- * Copyright (C) 2016 - 2019 Continental Corporation
+ * Copyright (C) 2016 - 2024 Continental Corporation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -168,6 +168,7 @@ namespace
     if (!pb_decode(&pb_istream, eCAL_pb_Sample_fields, &pb_sample))
     {
       std::cerr << "NanoPb eCAL::Payload::Sample decode failed: " << pb_istream.errmsg << '\n';
+      return false;
     }
 
     ///////////////////////////////////////////////
diff --git a/ecal/core/src/serialization/ecal_serialize_sample_registration.cpp b/ecal/core/src/serialization/ecal_serialize_sample_registration.cpp
index d758f79e7e..c4bfffd96a 100644
--- a/ecal/core/src/serialization/ecal_serialize_sample_registration.cpp
+++ b/ecal/core/src/serialization/ecal_serialize_sample_registration.cpp
@@ -1,6 +1,6 @@
 /* ========================= eCAL LICENSE =================================
  *
- * Copyright (C) 2016 - 2019 Continental Corporation
+ * Copyright (C) 2016 - 2024 Continental Corporation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -430,6 +430,7 @@ namespace
     if (!pb_decode(&pb_istream, eCAL_pb_Sample_fields, &pb_sample))
     {
       std::cerr << "NanoPb eCAL::Registration::Sample decode failed: " << pb_istream.errmsg << '\n';
+      return false;
     }
 
     ///////////////////////////////////////////////
@@ -568,6 +569,7 @@ namespace
     if (!pb_decode(&pb_istream, eCAL_pb_SampleList_fields, &pb_sample_list))
     {
       std::cerr << "NanoPb eCAL::Registration::Sample decode failed: " << pb_istream.errmsg << '\n';
+      return false;
     }
 
     return true;
diff --git a/ecal/core/src/serialization/ecal_serialize_service.cpp b/ecal/core/src/serialization/ecal_serialize_service.cpp
index 0a9bb72337..9bf6260d51 100644
--- a/ecal/core/src/serialization/ecal_serialize_service.cpp
+++ b/ecal/core/src/serialization/ecal_serialize_service.cpp
@@ -1,6 +1,6 @@
 /* ========================= eCAL LICENSE =================================
  *
- * Copyright (C) 2016 - 2019 Continental Corporation
+ * Copyright (C) 2016 - 2024 Continental Corporation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -144,6 +144,7 @@ namespace
     if (!pb_decode(&pb_istream, eCAL_pb_Request_fields, &pb_request))
     {
       std::cerr << "NanoPb eCAL::Service::Request decode failed: " << pb_istream.errmsg << '\n';
+      return false;
     }
 
     ///////////////////////////////////////////////
@@ -270,6 +271,7 @@ namespace
     if (!pb_decode(&pb_istream, eCAL_pb_Response_fields, &pb_response))
     {
       std::cerr << "NanoPb eCAL::Service::Response decode failed: " << pb_istream.errmsg << '\n';
+      return false;
     }
 
     ///////////////////////////////////////////////