diff --git a/Packages/vChewing_MainAssembly/Sources/MainAssembly/AppDelegate.swift b/Packages/vChewing_MainAssembly/Sources/MainAssembly/AppDelegate.swift
index d38579bf..df14fc23 100644
--- a/Packages/vChewing_MainAssembly/Sources/MainAssembly/AppDelegate.swift
+++ b/Packages/vChewing_MainAssembly/Sources/MainAssembly/AppDelegate.swift
@@ -17,6 +17,7 @@ import UpdateSputnik
 @objc(AppDelegate)
 public class AppDelegate: NSObject, NSApplicationDelegate, NSUserNotificationCenterDelegate {
   public static let shared = AppDelegate()
+
   private var folderMonitor = FolderMonitor(
     url: URL(fileURLWithPath: LMMgr.dataFolderPath(isDefaultFolder: false))
   )
@@ -29,9 +30,9 @@ public class AppDelegate: NSObject, NSApplicationDelegate, NSUserNotificationCen
     return .init(string: urlText)
   }
 
-  public func checkUpdate(forced: Bool) {
+  public func checkUpdate(forced: Bool, shouldBypass: @escaping () -> Bool) {
     guard let url = Self.updateInfoSourceURL else { return }
-    UpdateSputnik.shared.checkForUpdate(forced: forced, url: url)
+    UpdateSputnik.shared.checkForUpdate(forced: forced, url: url) { shouldBypass() }
   }
 }
 
@@ -89,11 +90,6 @@ public extension AppDelegate {
       self.reloadOnFolderChangeHappens()
     }
     if LMMgr.userDataFolderExists { folderMonitor.startMonitoring() }
-
-    // 只要使用者沒有勾選檢查更新、沒有主動做出要檢查更新的操作，就不要檢查更新。
-    if PrefMgr.shared.checkUpdateAutomatically {
-      checkUpdate(forced: false)
-    }
   }
 
   func updateDirectoryMonitorPath() {
diff --git a/Packages/vChewing_MainAssembly/Sources/MainAssembly/SessionCtl_Core.swift b/Packages/vChewing_MainAssembly/Sources/MainAssembly/SessionCtl_Core.swift
index 42c54c55..16510860 100644
--- a/Packages/vChewing_MainAssembly/Sources/MainAssembly/SessionCtl_Core.swift
+++ b/Packages/vChewing_MainAssembly/Sources/MainAssembly/SessionCtl_Core.swift
@@ -15,7 +15,6 @@ import PopupCompositionBuffer
 import Shared
 import ShiftKeyUpChecker
 import TooltipUI
-import UpdateSputnik
 
 /// 輸入法控制模組，乃在輸入法端用以控制輸入行為的基礎型別。
 ///
@@ -289,6 +288,12 @@ public extension SessionCtl {
         vCLog("activateServer(\(senderBundleID))")
         self.isServingIMEItself = Bundle.main.bundleIdentifier == senderBundleID
         self.clientBundleIdentifier = senderBundleID
+        // 只要使用者沒有勾選檢查更新、沒有主動做出要檢查更新的操作，就不要檢查更新。
+        if PrefMgr.shared.checkUpdateAutomatically {
+          AppDelegate.shared.checkUpdate(forced: false) {
+            senderBundleID == "com.apple.SecurityAgent"
+          }
+        }
       }
     }
     DispatchQueue.main.async {
@@ -338,7 +343,6 @@ public extension SessionCtl {
       }
 
       DispatchQueue.main.async {
-        AppDelegate.shared.checkUpdate(forced: false)
         AppDelegate.shared.checkMemoryUsage()
       }
 
diff --git a/Packages/vChewing_UpdateSputnik/Sources/UpdateSputnik/UpdateSputnik.swift b/Packages/vChewing_UpdateSputnik/Sources/UpdateSputnik/UpdateSputnik.swift
index 76c78e17..baf9a837 100644
--- a/Packages/vChewing_UpdateSputnik/Sources/UpdateSputnik/UpdateSputnik.swift
+++ b/Packages/vChewing_UpdateSputnik/Sources/UpdateSputnik/UpdateSputnik.swift
@@ -19,8 +19,10 @@ public class UpdateSputnik {
 
   public init() {}
 
-  public func checkForUpdate(forced: Bool = false, url: URL) {
-    guard !busy else { return }
+  public func checkForUpdate(forced: Bool = false, url: URL, shouldBypass: @escaping () -> Bool) {
+    let shouldBypass = shouldBypass()
+    silentMode = shouldBypass
+    guard !shouldBypass, !busy else { return }
 
     if !forced {
       if !UserDefaults.standard.bool(forKey: kCheckUpdateAutomatically) { return }
@@ -36,7 +38,9 @@ public class UpdateSputnik {
     let task = URLSession.shared.dataTask(with: request) { data, _, error in
       if let error = error {
         DispatchQueue.main.async {
-          self.showError(message: error.localizedDescription)
+          if !self.silentMode {
+            self.showError(message: error.localizedDescription)
+          }
           self.currentTask = nil
         }
         return
@@ -49,6 +53,7 @@ public class UpdateSputnik {
 
   // MARK: - Private Properties
 
+  private var silentMode = false
   private var isCurrentCheckForced = false
   var sessionConfiguration = URLSessionConfiguration.background(withIdentifier: Bundle.main.bundleIdentifier!)
 
@@ -58,7 +63,9 @@ public class UpdateSputnik {
     didSet {
       if let data = data {
         DispatchQueue.main.async {
-          self.dataDidSet(data: data)
+          if !self.silentMode {
+            self.dataDidSet(data: data)
+          }
           self.currentTask = nil
         }
       }
diff --git a/Source/Modules/SessionCtl_Menu.swift b/Source/Modules/SessionCtl_Menu.swift
index 55cec480..8e57a605 100644
--- a/Source/Modules/SessionCtl_Menu.swift
+++ b/Source/Modules/SessionCtl_Menu.swift
@@ -372,7 +372,9 @@ public extension SessionCtl {
   }
 
   @objc func checkForUpdate(_: Any? = nil) {
-    AppDelegate.shared.checkUpdate(forced: true)
+    AppDelegate.shared.checkUpdate(forced: true) { [weak self] in
+      self?.clientBundleIdentifier == "com.apple.SecurityAgent"
+    }
   }
 
   @objc func openUserDataFolder(_: Any? = nil) {