diff --git a/ecal/core/include/ecal/ecal_timed_cb.h b/ecal/core/include/ecal/ecal_timed_cb.h
index 5581b6d518..a8cceb00f9 100644
--- a/ecal/core/include/ecal/ecal_timed_cb.h
+++ b/ecal/core/include/ecal/ecal_timed_cb.h
@@ -97,7 +97,10 @@ namespace eCAL
     {
       if (!m_running) return(false);
       m_stop = true;
-      m_thread.join();
+      // Wait for the callback thread to finish
+      if (m_thread.joinable()) {
+        m_thread.join();
+      }
       m_running = false;
       return(true);
     }
diff --git a/ecal/core/src/ecal_thread.h b/ecal/core/src/ecal_thread.h
index 7c5fa3c65f..135a4b1a1d 100644
--- a/ecal/core/src/ecal_thread.h
+++ b/ecal/core/src/ecal_thread.h
@@ -37,6 +37,11 @@ namespace eCAL
     CThread();
     virtual ~CThread();
 
+    CThread(const CThread&) = delete;
+    CThread& operator=(const CThread&) = delete;
+    CThread(CThread&& rhs) = delete;
+    CThread& operator=(CThread&& rhs) = delete;
+
     int Start(int period, std::function<int()> ext_caller_);
     int Stop();
     int Fire();
diff --git a/ecal/core/src/ecal_timer.cpp b/ecal/core/src/ecal_timer.cpp
index 199cd15446..c5dc50aecf 100644
--- a/ecal/core/src/ecal_timer.cpp
+++ b/ecal/core/src/ecal_timer.cpp
@@ -38,6 +38,10 @@ namespace eCAL
     CTimerImpl(const int timeout_, TimerCallbackT callback_, const int delay_) : m_stop(false), m_running(false) { Start(timeout_, callback_, delay_); }
 
     virtual ~CTimerImpl() { Stop(); }
+    CTimerImpl(const CTimerImpl&) = delete;
+    CTimerImpl& operator=(const CTimerImpl&) = delete;
+    CTimerImpl(CTimerImpl&& rhs) = delete;
+    CTimerImpl& operator=(CTimerImpl&& rhs) = delete;
 
     bool Start(const int timeout_, TimerCallbackT callback_, const int delay_)
     {
diff --git a/ecal/core/src/io/ecal_memfile_pool.cpp b/ecal/core/src/io/ecal_memfile_pool.cpp
index 04ac67929a..12afb7fdb0 100644
--- a/ecal/core/src/io/ecal_memfile_pool.cpp
+++ b/ecal/core/src/io/ecal_memfile_pool.cpp
@@ -309,7 +309,10 @@ namespace eCAL
   {
   }
 
-  CMemFileThreadPool::~CMemFileThreadPool() = default;
+  CMemFileThreadPool::~CMemFileThreadPool()
+  {
+    Destroy();
+  }
 
   void CMemFileThreadPool::Create()
   {
diff --git a/ecal/core/src/io/ecal_memfile_pool.h b/ecal/core/src/io/ecal_memfile_pool.h
index c09c7f6b7e..4cd6490927 100644
--- a/ecal/core/src/io/ecal_memfile_pool.h
+++ b/ecal/core/src/io/ecal_memfile_pool.h
@@ -50,6 +50,11 @@ namespace eCAL
     CMemFileObserver();
     ~CMemFileObserver();
 
+    CMemFileObserver(const CMemFileObserver&) = delete;
+    CMemFileObserver& operator=(const CMemFileObserver&) = delete;
+    CMemFileObserver(CMemFileObserver&& rhs) = delete;
+    CMemFileObserver& operator=(CMemFileObserver&& rhs) = delete;
+
     bool Create(const std::string& memfile_name_, const std::string& memfile_event_);
     bool Destroy();