diff --git a/lib/api/LogManagerImpl.cpp b/lib/api/LogManagerImpl.cpp
index 2f0e8933d..24215c0cd 100644
--- a/lib/api/LogManagerImpl.cpp
+++ b/lib/api/LogManagerImpl.cpp
@@ -839,7 +839,7 @@ namespace MAT_NS_BEGIN
             return;
         }
 
-        auto itDataInspector = std::find_if(m_dataInspectors.begin(), m_dataInspectors.end(), [&dataInspector](const std::shared_ptr<IDataInspector>& currentInspector)
+        auto itDataInspector = std::find_if(m_dataInspectors.begin(), m_dataInspectors.end(), [&dataInspector](const std::shared_ptr<IDataInspector>& currentInspector) noexcept
         {
             return strcmp(dataInspector->GetName(), currentInspector->GetName()) == 0;
         });
@@ -862,7 +862,7 @@ namespace MAT_NS_BEGIN
     void LogManagerImpl::RemoveDataInspector(const std::string& name)
     {
         LOCKGUARD(m_dataInspectorGuard);
-        auto itDataInspector = std::find_if(m_dataInspectors.begin(), m_dataInspectors.end(), [&name](const std::shared_ptr<IDataInspector>& inspector){
+        auto itDataInspector = std::find_if(m_dataInspectors.begin(), m_dataInspectors.end(), [&name](const std::shared_ptr<IDataInspector>& inspector) noexcept {
             return strcmp(inspector->GetName(), name.c_str()) == 0;
         });
 
@@ -875,7 +875,7 @@ namespace MAT_NS_BEGIN
     std::shared_ptr<IDataInspector> LogManagerImpl::GetDataInspector(const std::string& name) noexcept
     {
         LOCKGUARD(m_dataInspectorGuard);
-        auto it = std::find_if(m_dataInspectors.begin(), m_dataInspectors.end(), [&name](const std::shared_ptr<IDataInspector>& inspector){
+        auto it = std::find_if(m_dataInspectors.begin(), m_dataInspectors.end(), [&name](const std::shared_ptr<IDataInspector>& inspector) noexcept{
             return strcmp(inspector->GetName(), name.c_str()) == 0;
         });
 
@@ -944,7 +944,7 @@ namespace MAT_NS_BEGIN
         if (m_pause_state != PauseState::Pausing) {
             return;
         }
-        m_pause_cv.wait(lock, [this]() -> bool {
+        m_pause_cv.wait(lock, [this]() noexcept -> bool {
             return m_pause_state != PauseState::Pausing;
         });
     }
diff --git a/lib/api/LogSessionData.cpp b/lib/api/LogSessionData.cpp
index 9ea280f6a..34f6538b2 100644
--- a/lib/api/LogSessionData.cpp
+++ b/lib/api/LogSessionData.cpp
@@ -10,7 +10,7 @@ using namespace std;
 
 namespace MAT_NS_BEGIN {
 
-    uint64_t LogSessionData::getSessionFirstTime() const
+    uint64_t LogSessionData::getSessionFirstTime() const noexcept
     {
         return m_sessionFirstTimeLaunch;
     }
diff --git a/lib/include/public/EventProperties.hpp b/lib/include/public/EventProperties.hpp
index a2aa3ecda..ef7f3b705 100644
--- a/lib/include/public/EventProperties.hpp
+++ b/lib/include/public/EventProperties.hpp
@@ -60,6 +60,18 @@ namespace MAT_NS_BEGIN
         /// </summary>
         EventProperties& operator=(EventProperties const& copy);
 
+        /// <summary>
+        /// The EventProperties move constructor. Transfers ownership of the
+        /// underlying storage (O(1)); the moved-from object is left empty and is
+        /// only valid to destroy or reassign.
+        /// </summary>
+        EventProperties(EventProperties&& move) noexcept;
+
+        /// <summary>
+        /// The EventProperties move-assignment operator.
+        /// </summary>
+        EventProperties& operator=(EventProperties&& move) noexcept;
+
         /// <summary>
         /// Constructs an EventProperties object from a map of string to EventProperty.<br>
         /// You must supply a non-empty name whenever you supply any custom properties for the event via <b>EventProperties</b>.
diff --git a/lib/include/public/LogSessionData.hpp b/lib/include/public/LogSessionData.hpp
index 024f2272f..0a6737f36 100644
--- a/lib/include/public/LogSessionData.hpp
+++ b/lib/include/public/LogSessionData.hpp
@@ -29,7 +29,7 @@ namespace MAT_NS_BEGIN
         /// Gets the time that this session began.
         /// </summary>
         /// <returns>A 64-bit integer that contains the time.</returns>
-        uint64_t getSessionFirstTime() const;
+        uint64_t getSessionFirstTime() const noexcept;
 
         /// <summary>
         /// Gets the SDK unique identifier.
diff --git a/lib/offline/LogSessionDataProvider.cpp b/lib/offline/LogSessionDataProvider.cpp
index 1615d84e7..1c0523810 100644
--- a/lib/offline/LogSessionDataProvider.cpp
+++ b/lib/offline/LogSessionDataProvider.cpp
@@ -49,7 +49,7 @@ namespace MAT_NS_BEGIN
         }
     }
 
-    LogSessionData* LogSessionDataProvider::GetLogSessionData() 
+    LogSessionData* LogSessionDataProvider::GetLogSessionData() noexcept
     {
         return m_logSessionData.get();
     }
@@ -153,25 +153,32 @@ namespace MAT_NS_BEGIN
         return true;
     }
 
-    uint64_t LogSessionDataProvider::convertStrToLong(const std::string& s)
+    uint64_t LogSessionDataProvider::convertStrToLong(const std::string& s) noexcept
     {
         uint64_t res = 0ull;
         char *endptr = nullptr;
-        res = std::strtoll(s.c_str(), &endptr, 10);
-        if (errno == ERANGE && (res == LONG_MAX || res == 0 ))
+        // strtoull silently wraps a leading '-' into a large value, so reject
+        // negative input explicitly before parsing.
+        size_t firstNonSpace = s.find_first_not_of(" \t\n\r\f\v");
+        if (firstNonSpace != std::string::npos && s[firstNonSpace] == '-')
         {
-            LOG_WARN ("Converted value falls out of uint64_t range.");
-            res = 0;
-        } 
-        else if ( 0 != errno  && 0 == res )
+            LOG_WARN ("Converted value is negative; rejecting.");
+            return 0;
+        }
+        errno = 0;
+        unsigned long long parsed = std::strtoull(s.c_str(), &endptr, 10);
+        if (errno == ERANGE)
         {
-            LOG_WARN("Conversion cannot be performed.");
+            LOG_WARN ("Converted value falls out of range.");
         }
-        else if (std::strlen(endptr) > 0)
+        else if (endptr == s.c_str() || std::strlen(endptr) > 0)
         {
-            LOG_WARN ("Conversion cannot be performed. Alphanumeric characters present");
-            res = 0;
-        } 
+            LOG_WARN ("Conversion cannot be performed.");
+        }
+        else
+        {
+            res = static_cast<uint64_t>(parsed);
+        }
         return res;
     }
 
@@ -193,7 +200,7 @@ namespace MAT_NS_BEGIN
         }
     }
 
-    void LogSessionDataProvider::remove_eol(std::string& result)
+    void LogSessionDataProvider::remove_eol(std::string& result) noexcept
     {
         if (!result.empty() && result[result.length() - 1] == '\n')
         {
diff --git a/lib/offline/LogSessionDataProvider.hpp b/lib/offline/LogSessionDataProvider.hpp
index be782095e..3b45a9fc8 100644
--- a/lib/offline/LogSessionDataProvider.hpp
+++ b/lib/offline/LogSessionDataProvider.hpp
@@ -21,7 +21,7 @@ namespace MAT_NS_BEGIN
     {
     public:
         LogSessionDataProvider(
-            IOfflineStorage* offlineStorage)
+            IOfflineStorage* offlineStorage) noexcept
             :
             m_offlineStorage(offlineStorage),
             m_storageType(SessionStorageType::DatabaseStore),
@@ -41,7 +41,7 @@ namespace MAT_NS_BEGIN
         void CreateLogSessionData();
         void ResetLogSessionData();
         void DeleteLogSessionData();
-        LogSessionData *GetLogSessionData();
+        LogSessionData *GetLogSessionData() noexcept;
 
     protected:
         void CreateLogSessionDataFromFile();
@@ -55,9 +55,9 @@ namespace MAT_NS_BEGIN
         std::string const m_cacheFilePath;
         SessionStorageType m_storageType;
         std::unique_ptr<LogSessionData> m_logSessionData;
-        static uint64_t convertStrToLong(const std::string&);
+        static uint64_t convertStrToLong(const std::string&) noexcept;
         static void writeFileContents(const std::string&, uint64_t, const std::string&);
-        void remove_eol(std::string& );
+        void remove_eol(std::string& ) noexcept;
     };
 }
 MAT_NS_END
diff --git a/lib/system/EventProperties.cpp b/lib/system/EventProperties.cpp
index ebe62ff58..2ade77741 100644
--- a/lib/system/EventProperties.cpp
+++ b/lib/system/EventProperties.cpp
@@ -90,8 +90,33 @@ namespace MAT_NS_BEGIN {
 
     EventProperties& EventProperties::operator=(EventProperties const& copy)
     {
-        *m_storage = *copy.m_storage;
+        // m_storage may be null if this object was moved-from; reallocate then.
+        if (m_storage == nullptr)
+        {
+            m_storage = new EventPropertiesStorage(*copy.m_storage);
+        }
+        else
+        {
+            *m_storage = *copy.m_storage;
+        }
+
+        return *this;
+    }
+
+    EventProperties::EventProperties(EventProperties&& move) noexcept
+        : m_storage(move.m_storage)
+    {
+        move.m_storage = nullptr;
+    }
 
+    EventProperties& EventProperties::operator=(EventProperties&& move) noexcept
+    {
+        if (this != &move)
+        {
+            delete m_storage;
+            m_storage = move.m_storage;
+            move.m_storage = nullptr;
+        }
         return *this;
     }
 
diff --git a/lib/system/TelemetrySystemBase.hpp b/lib/system/TelemetrySystemBase.hpp
index 30fd1d5af..fba193b1b 100644
--- a/lib/system/TelemetrySystemBase.hpp
+++ b/lib/system/TelemetrySystemBase.hpp
@@ -36,11 +36,11 @@ namespace MAT_NS_BEGIN {
             m_isPaused(false),
             stats(*this, taskDispatcher)
         {
-            onStart  = []() { return true; };
-            onStop   = []() { return true; };
-            onPause  = []() { return true; };
-            onResume = []() { return true; };
-            onCleanup  = []() { return true; };
+            onStart  = []() noexcept { return true; };
+            onStop   = []() noexcept { return true; };
+            onPause  = []() noexcept { return true; };
+            onResume = []() noexcept { return true; };
+            onCleanup  = []() noexcept { return true; };
         }
         
         /// <summary>
diff --git a/lib/utils/StringUtils.cpp b/lib/utils/StringUtils.cpp
index 7ee3318f3..d47d3c0b2 100644
--- a/lib/utils/StringUtils.cpp
+++ b/lib/utils/StringUtils.cpp
@@ -31,7 +31,7 @@ namespace MAT_NS_BEGIN
         }
     }
 
-    bool StringUtils::AreAllCharactersAllowlisted(const string& stringToTest, const string& allowlist)
+    bool StringUtils::AreAllCharactersAllowlisted(const string& stringToTest, const string& allowlist) noexcept
     {
         return (stringToTest.find_first_not_of(allowlist) == string::npos);
     }
@@ -132,7 +132,7 @@ namespace MAT_NS_BEGIN
     {
         std::string result = str;
         std::transform(str.begin(), str.end(), result.begin(),
-                       [](unsigned char c) { return (char)::tolower(c); });
+                       [](unsigned char c) noexcept { return (char)::tolower(c); });
         return result;
     }
 
@@ -140,7 +140,7 @@ namespace MAT_NS_BEGIN
     {
         std::string result = str;
         std::transform(str.begin(), str.end(), result.begin(),
-                       [](unsigned char c) { return (char)::toupper(c); });
+                       [](unsigned char c) noexcept { return (char)::toupper(c); });
         return result;
     }
 
@@ -158,7 +158,7 @@ namespace MAT_NS_BEGIN
         return str;
     }
 
-    const char* priorityToStr(EventPriority priority)
+    const char* priorityToStr(EventPriority priority) noexcept
     {
         switch (priority)
         {
@@ -185,7 +185,7 @@ namespace MAT_NS_BEGIN
         }
     }
 
-    const char* latencyToStr(EventLatency latency)
+    const char* latencyToStr(EventLatency latency) noexcept
     {
         switch (latency)
         {
diff --git a/lib/utils/StringUtils.hpp b/lib/utils/StringUtils.hpp
index 464f551f1..dc7c42bc8 100644
--- a/lib/utils/StringUtils.hpp
+++ b/lib/utils/StringUtils.hpp
@@ -17,7 +17,7 @@ namespace MAT_NS_BEGIN
     namespace StringUtils
     {
         void SplitString(const std::string& s, const char separator, std::vector<std::string>& parts);
-        bool AreAllCharactersAllowlisted(const std::string& stringToTest, const std::string& allowlist);
+        bool AreAllCharactersAllowlisted(const std::string& stringToTest, const std::string& allowlist) noexcept;
     }
 
     std::string toString(char const* value);
@@ -44,9 +44,9 @@ namespace MAT_NS_BEGIN
 
     std::string sanitizeIdentifier(const std::string& str);
 
-    const char* priorityToStr(EventPriority priority);
+    const char* priorityToStr(EventPriority priority) noexcept;
 
-    const char* latencyToStr(EventLatency latency);
+    const char* latencyToStr(EventLatency latency) noexcept;
 
     bool replace(std::string& str, const std::string& from, const std::string& to);
 
diff --git a/lib/utils/Utils.cpp b/lib/utils/Utils.cpp
index e2360ca18..22a48d87f 100644
--- a/lib/utils/Utils.cpp
+++ b/lib/utils/Utils.cpp
@@ -74,7 +74,7 @@ namespace MAT_NS_BEGIN {
 #endif
     }
 
-    bool IsRunningInApp()
+    bool IsRunningInApp() noexcept
     {
 #ifdef _WINRT_DLL  // Win 10 UWP
         typedef LONG (*LPFN_GPFN)(UINT32*, PWSTR);
diff --git a/lib/utils/Utils.hpp b/lib/utils/Utils.hpp
index 78c47201a..ce249b9ab 100644
--- a/lib/utils/Utils.hpp
+++ b/lib/utils/Utils.hpp
@@ -67,7 +67,7 @@ namespace MAT_NS_BEGIN {
     long GetCurrentProcessId();
 
     /* Detects if current process is running in a packaged app*/
-    bool IsRunningInApp();
+    bool IsRunningInApp() noexcept;
 
     std::string GetTempDirectory();
     std::string GetAppLocalTempDirectory();
diff --git a/lib/utils/annex_k.hpp b/lib/utils/annex_k.hpp
index 4e9fef9ed..5aa4b73af 100644
--- a/lib/utils/annex_k.hpp
+++ b/lib/utils/annex_k.hpp
@@ -45,7 +45,7 @@ namespace MAT_NS_BEGIN
 class BoundCheckFunctions
 {
 private:
-static bool oneds_buffer_region_overlap(const char *buffer1, size_t buffer1_len, const char *buffer2, size_t buffer2_len)
+static bool oneds_buffer_region_overlap(const char *buffer1, size_t buffer1_len, const char *buffer2, size_t buffer2_len) noexcept
 {
     if (buffer2 >= buffer1) 
     {
@@ -70,7 +70,7 @@ static bool oneds_buffer_region_overlap(const char *buffer1, size_t buffer1_len,
 //  - returns zero if str is a null pointer
 //  -  returns strsz if the null character was not found in the first strsz bytes of str.
 
-static size_t oneds_strnlen_s(const char *str, size_t strsz)
+static size_t oneds_strnlen_s(const char *str, size_t strsz) noexcept
 {
    if ( str == NULL)
    {
@@ -89,7 +89,7 @@ static size_t oneds_strnlen_s(const char *str, size_t strsz)
 //   - count is greater than RSIZE_MAX
 //   - count is greater or equal destsz, but destsz is less or equal strnlen_s(src, count), in other words, truncation would occur
 //   - overlap would occur between the source and the destination strings
-static errno_t oneds_strncpy_s(char * restrict dest, rsize_t destsz, const char *restrict src, rsize_t count)
+static errno_t oneds_strncpy_s(char * restrict dest, rsize_t destsz, const char *restrict src, rsize_t count) noexcept
 {
 #if (defined __STDC_LIB_EXT1__) || ( defined _MSC_VER)
     return strncpy_s(dest, destsz, src, count);
@@ -148,7 +148,7 @@ static errno_t oneds_strncpy_s(char * restrict dest, rsize_t destsz, const char
 // (if both dest and destsz are valid))
 
 static errno_t oneds_memcpy_s( void *restrict dest, rsize_t destsz,
-                  const void *restrict src, rsize_t count )
+                  const void *restrict src, rsize_t count ) noexcept
 {
 #if (defined __STDC_LIB_EXT1__) || ( defined _MSC_VER)
        return memcpy_s(dest, destsz, src, count);     
diff --git a/tests/common/Common.cpp b/tests/common/Common.cpp
index f6023f656..0200402b9 100644
--- a/tests/common/Common.cpp
+++ b/tests/common/Common.cpp
@@ -268,7 +268,7 @@ namespace testing {
         return fname;
 	}
 
-	void LogMemUsage(const char* label) 
+	void LogMemUsage(const char* label) noexcept
 	{
 #ifdef DEBUG_PERF
 #ifdef _WIN32
@@ -295,7 +295,7 @@ namespace testing {
 #endif
     }
 
-    void LogCpuUsage(const char* label)
+    void LogCpuUsage(const char* label) noexcept
     {
 #ifdef DEBUG_PERF
     	static int64_t lastTime = GetUptimeMs();
diff --git a/tests/common/Common.hpp b/tests/common/Common.hpp
index 754040ff8..da7f2903e 100644
--- a/tests/common/Common.hpp
+++ b/tests/common/Common.hpp
@@ -75,9 +75,9 @@ namespace testing {
        LogMemUsage(label); \
        LogCpuUsage(label);
 
-    void LogMemUsage(const char* label);
+    void LogMemUsage(const char* label) noexcept;
 
-    void LogCpuUsage(const char* label);
+    void LogCpuUsage(const char* label) noexcept;
     void InflateVector(std::vector<uint8_t> &in, std::vector<uint8_t> &out, bool isGzip = false);
 
 } // namespace testing
diff --git a/tests/common/MockIRuntimeConfig.hpp b/tests/common/MockIRuntimeConfig.hpp
index 4a7509c84..a52ef8e8d 100644
--- a/tests/common/MockIRuntimeConfig.hpp
+++ b/tests/common/MockIRuntimeConfig.hpp
@@ -19,7 +19,7 @@ namespace testing {
     class MockIRuntimeConfig : public MAT::RuntimeConfig_Default /* MAT::IRuntimeConfig */ {
 
     protected:
-        std::unique_ptr<ILogConfiguration>& GetStaticConfig()
+        std::unique_ptr<ILogConfiguration>& GetStaticConfig() noexcept
         {
             static std::unique_ptr<ILogConfiguration> staticConfig;
             return staticConfig;