diff --git a/src/Network/Resources.cpp b/src/Network/Resources.cpp
index a025063..1fe99fc 100644
--- a/src/Network/Resources.cpp
+++ b/src/Network/Resources.cpp
@@ -573,6 +573,13 @@ void NewSyncResources(SOCKET Sock, const std::string& Mods, const std::vector<Mo
                 break;
             }
 
+            if (Data != "AG") {
+                UUl("Received corrupted download confirmation, aborting download.");
+                debug("Corrupted download confirmation: " + Data);
+                Terminate = true;
+                break;
+            }
+
             std::string Name = std::to_string(ModNo) + "/" + std::to_string(TotalMods) + ": " + FName;
 
             std::vector<char> DownloadedFile = SingleNormalDownload(Sock, ModInfoIter->FileSize, Name);
@@ -587,11 +594,16 @@ void NewSyncResources(SOCKET Sock, const std::string& Mods, const std::vector<Mo
                 OutFile.write(DownloadedFile.data(), DownloadedFile.size());
                 OutFile.flush();
             }
-            // 2. verify size
+            // 2. verify size and hash
             if (std::filesystem::file_size(PathToSaveTo) != DownloadedFile.size()) {
                 error("Failed to write the entire file '" + PathToSaveTo + "' correctly (file size mismatch)");
                 Terminate = true;
             }
+
+            if (GetSha256HashReallyFast(PathToSaveTo) != ModInfoIter->Hash) {
+                error("Failed to write or download the entire file '" + PathToSaveTo + "' correctly (hash mismatch)");
+                Terminate = true;
+            }
         } while (fs::file_size(PathToSaveTo) != ModInfoIter->FileSize && !Terminate);
         if (!Terminate) {
             if (!fs::exists(GetGamePath() + "mods/multiplayer")) {