diff --git a/application/Espo/Core/Api/Auth.php b/application/Espo/Core/Api/Auth.php
index 950ce8a581..88e06d635e 100644
--- a/application/Espo/Core/Api/Auth.php
+++ b/application/Espo/Core/Api/Auth.php
@@ -34,14 +34,13 @@ use Espo\Core\Exceptions\{
     ServiceUnavailable,
 };
 
-use Espo\Core\Authentication\{
-    Authentication,
-    Result,
-};
 
 use Espo\Core\{
     Api\Request,
     Api\Response,
+    Authentication\Authentication,
+    Authentication\Result,
+    Utils\Log,
 };
 
 use Exception;
@@ -52,30 +51,24 @@ use Exception;
  */
 class Auth
 {
+    protected $log;
+
     protected $authentication;
 
     protected $authRequired;
+    
+    protected $isEntryPoint;
 
-    protected $isEntryPoint = false;
-
-    public function __construct(Authentication $authentication, bool $authRequired = true)
-    {
+    public function __construct(
+        Log $log,
+        Authentication $authentication,
+        bool $authRequired = true,
+        bool $isEntryPoint = false
+    ) {
+        $this->log = $log;
         $this->authentication = $authentication;
         $this->authRequired = $authRequired;
-    }
-
-    public static function createForEntryPoint(Authentication $authentication, bool $authRequired = true) : self
-    {
-        $instance = new Auth($authentication, $authRequired);
-
-        $instance->isEntryPoint = true;
-
-        return $instance;
-    }
-
-    public static function createBuilder() : AuthBuilder
-    {
-        return new AuthBuilder();
+        $this->isEntryPoint = $isEntryPoint;
     }
 
     public function process(Request $request, Response $response) : AuthResult
@@ -213,14 +206,14 @@ class Auth
 
             $response->setStatus($e->getCode());
 
-            $GLOBALS['log']->notice("Auth: " . $e->getMessage());
+            $this->log->notice("Auth: " . $e->getMessage());
 
             return;
         }
 
         $response->setStatus(500);
 
-        $GLOBALS['log']->error("Auth: " . $e->getMessage());
+        $this->log->error("Auth: " . $e->getMessage());
     }
 
     protected function handleUnauthorized(Response $response, bool $showDialog)
diff --git a/application/Espo/Core/Api/AuthBuilder.php b/application/Espo/Core/Api/AuthBuilder.php
index 606b1fde16..e8c18823f4 100644
--- a/application/Espo/Core/Api/AuthBuilder.php
+++ b/application/Espo/Core/Api/AuthBuilder.php
@@ -29,10 +29,10 @@
 
 namespace Espo\Core\Api;
 
-use Espo\Core\Exceptions\Error;
-
-use Espo\Core\Authentication\{
-    Authentication,
+use Espo\Core\{
+    Exceptions\Error,
+    Authentication\Authentication,
+    Utils\Log,
 };
 
 /**
@@ -46,6 +46,13 @@ class AuthBuilder
 
     private $authentication = null;
 
+    private $log;
+
+    public function __construct(Log $log)
+    {
+        $this->log = $log;
+    }
+
     public function setAuthentication(Authentication $authentication) : self
     {
         $this->authentication = $authentication;
@@ -73,10 +80,6 @@ class AuthBuilder
             throw new Error("Authentication is not set.");
         }
 
-        if ($this->isEntryPoint) {
-            return Auth::createForEntryPoint($this->authentication, $this->authRequired);
-        }
-
-        return new Auth($this->authentication, $this->authRequired);
+        return new Auth($this->log, $this->authentication, $this->authRequired, $this->isEntryPoint);
     }
 }
diff --git a/application/Espo/Core/Api/AuthBuilderFactory.php b/application/Espo/Core/Api/AuthBuilderFactory.php
new file mode 100644
index 0000000000..21d433e336
--- /dev/null
+++ b/application/Espo/Core/Api/AuthBuilderFactory.php
@@ -0,0 +1,49 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM - Open Source CRM application.
+ * Copyright (C) 2014-2021 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
+ * Website: https://www.espocrm.com
+ *
+ * EspoCRM is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * EspoCRM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\Api;
+
+use Espo\Core\{
+    Utils\Log,
+};
+
+class AuthBuilderFactory
+{
+    private $log;
+
+    public function __construct(Log $log)
+    {
+        $this->log = $log;
+    }
+
+    public function create() : AuthBuilder
+    {
+        return new AuthBuilder($this->log);
+    }
+}
diff --git a/application/Espo/Core/ApplicationRunners/Api.php b/application/Espo/Core/ApplicationRunners/Api.php
index 82436d2f0d..a4fee56fca 100644
--- a/application/Espo/Core/ApplicationRunners/Api.php
+++ b/application/Espo/Core/ApplicationRunners/Api.php
@@ -33,7 +33,7 @@ use Espo\Core\{
     InjectableFactory,
     ApplicationUser,
     Authentication\Authentication,
-    Api\Auth as ApiAuth,
+    Api\AuthBuilderFactory,
     Api\ErrorOutput as ApiErrorOutput,
     Api\RequestWrapper,
     Api\ResponseWrapper,
@@ -63,14 +63,20 @@ class Api implements ApplicationRunner
     protected $injectableFactory;
     protected $applicationUser;
     protected $routeUtil;
+    protected $authBuilderFactory;
     protected $log;
 
     public function __construct(
-        InjectableFactory $injectableFactory, ApplicationUser $applicationUser, Route $routeUtil, Log $log
+        InjectableFactory $injectableFactory,
+        ApplicationUser $applicationUser,
+        Route $routeUtil,
+        AuthBuilderFactory $authBuilderFactory,
+        Log $log
     ) {
         $this->injectableFactory = $injectableFactory;
         $this->applicationUser = $applicationUser;
         $this->routeUtil = $routeUtil;
+        $this->authBuilderFactory = $authBuilderFactory;
         $this->log = $log;
     }
 
@@ -161,7 +167,8 @@ class Api implements ApplicationRunner
 
             $authentication = $this->injectableFactory->create(Authentication::class);
 
-            $apiAuth = ApiAuth::createBuilder()
+            $apiAuth = $this->authBuilderFactory
+                ->create()
                 ->setAuthentication($authentication)
                 ->setAuthRequired($authRequired)
                 ->build();
diff --git a/application/Espo/Core/ApplicationRunners/EntryPoint.php b/application/Espo/Core/ApplicationRunners/EntryPoint.php
index 6c5266a3a8..dac1ebc19d 100644
--- a/application/Espo/Core/ApplicationRunners/EntryPoint.php
+++ b/application/Espo/Core/ApplicationRunners/EntryPoint.php
@@ -39,7 +39,7 @@ use Espo\Core\{
     Utils\Route,
     Utils\ClientManager,
     Authentication\Authentication,
-    Api\Auth as ApiAuth,
+    Api\AuthBuilderFactory,
     Api\ErrorOutput as ApiErrorOutput,
     Api\RequestWrapper,
     Api\ResponseWrapper,
@@ -68,6 +68,7 @@ class EntryPoint implements ApplicationRunner
     protected $clientManager;
     protected $applicationUser;
     protected $authTokenManager;
+    protected $authBuilderFactory;
 
     public function __construct(
         InjectableFactory $injectableFactory,
@@ -76,6 +77,7 @@ class EntryPoint implements ApplicationRunner
         ClientManager $clientManager,
         ApplicationUser $applicationUser,
         AuthTokenManager $authTokenManager,
+        AuthBuilderFactory $authBuilderFactory,
         ?StdClass $params = null
     ) {
         $this->injectableFactory = $injectableFactory;
@@ -84,6 +86,7 @@ class EntryPoint implements ApplicationRunner
         $this->clientManager = $clientManager;
         $this->applicationUser = $applicationUser;
         $this->authTokenManager = $authTokenManager;
+        $this->authBuilderFactory = $authBuilderFactory;
 
         $this->params = $params ?? (object) [];
     }
@@ -140,7 +143,8 @@ class EntryPoint implements ApplicationRunner
                 'allowAnyAccess' => $authNotStrict,
             ]);
 
-            $apiAuth = ApiAuth::createBuilder()
+            $apiAuth = $this->authBuilderFactory
+                ->create()
                 ->setAuthentication($authentication)
                 ->setAuthRequired($authRequired)
                 ->forEntryPoint()
diff --git a/application/Espo/Core/Authentication/Authentication.php b/application/Espo/Core/Authentication/Authentication.php
index 0fd0eea8fc..9e4aca2fca 100644
--- a/application/Espo/Core/Authentication/Authentication.php
+++ b/application/Espo/Core/Authentication/Authentication.php
@@ -56,6 +56,7 @@ use Espo\Core\{
     Utils\Metadata,
     ORM\EntityManagerProxy,
     Api\Request,
+    Utils\Log,
 };
 
 use DateTime;
@@ -80,6 +81,7 @@ class Authentication
     protected $entityManager;
     protected $authLoginFactory;
     protected $auth2FAFactory;
+    protected $log;
 
     public function __construct(
         ApplicationUser $applicationUser,
@@ -90,6 +92,7 @@ class Authentication
         LoginFactory $authLoginFactory,
         TwoFAFactory $auth2FAFactory,
         AuthTokenManager $authTokenManager,
+        Log $log,
         bool $allowAnyAccess = false
     ) {
         $this->allowAnyAccess = $allowAnyAccess;
@@ -102,6 +105,7 @@ class Authentication
         $this->authLoginFactory = $authLoginFactory;
         $this->auth2FAFactory = $auth2FAFactory;
         $this->authTokenManager = $authTokenManager;
+        $this->log = $log;
     }
 
     protected function getDefaultAuthenticationMethod()
@@ -139,7 +143,7 @@ class Authentication
 
         if ($authenticationMethod) {
             if (!$this->metadata->get(['authenticationMethods', $authenticationMethod, 'api'])) {
-                $GLOBALS['log']->warning(
+                $this->log->warning(
                     "AUTH: Trying to use not allowed authentication method '{$authenticationMethod}'."
                 );
 
@@ -179,13 +183,17 @@ class Authentication
         if ($authToken && $authToken->isActive()) {
             if (!$this->allowAnyAccess) {
                 if ($this->isPortal() && $authToken->getPortalId() !== $this->getPortal()->id) {
-                    $GLOBALS['log']->info("AUTH: Trying to login to portal with a token not related to portal.");
+                    $this->log->info(
+                        "AUTH: Trying to login to portal with a token not related to portal."
+                    );
 
                     return Result::fail('Denied');
                 }
 
                 if (!$this->isPortal() && $authToken->getPortalId()) {
-                    $GLOBALS['log']->info("AUTH: Trying to login to crm with a token related to portal.");
+                    $this->log->info(
+                        "AUTH: Trying to login to crm with a token related to portal."
+                    );
 
                     return Result::fail('Denied');
                 }
@@ -206,7 +214,9 @@ class Authentication
 
         if ($isByTokenOnly && !$authToken) {
             if ($username) {
-                $GLOBALS['log']->info("AUTH: Trying to login as user '{$username}' by token but token is not found.");
+                $this->log->info(
+                    "AUTH: Trying to login as user '{$username}' by token but token is not found."
+                );
             }
 
             return Result::fail('Token not found');
@@ -304,7 +314,7 @@ class Authentication
     protected function processUserCheck(User $user, ?AuthLogRecord $authLogRecord) : bool
     {
         if (!$user->isActive()) {
-            $GLOBALS['log']->info(
+            $this->log->info(
                 "AUTH: Trying to login as user '".$user->get('userName')."' which is not active."
             );
 
@@ -314,7 +324,7 @@ class Authentication
         }
 
         if (!$user->isAdmin() && !$this->isPortal() && $user->isPortal()) {
-            $GLOBALS['log']->info(
+            $this->log->info(
                 "AUTH: Trying to login to crm as a portal user '".$user->get('userName')."'."
             );
 
@@ -324,7 +334,7 @@ class Authentication
         }
 
         if ($this->isPortal() && !$user->isPortal()) {
-            $GLOBALS['log']->info(
+            $this->log->info(
                 "AUTH: Trying to login to portal as user '".$user->get('userName')."' which is not portal user."
             );
 
@@ -339,7 +349,7 @@ class Authentication
                 ->isRelated($this->getPortal(), 'users', $user);
 
             if (!$isPortalRelatedToUser) {
-                $GLOBALS['log']->info(
+                $this->log->info(
                     "AUTH: Trying to login to portal as user '".$user->get('userName')."' ".
                     "which is portal user but does not belongs to portal."
                 );
@@ -441,7 +451,7 @@ class Authentication
         }
 
         if ($failAttemptCount > $maxFailedAttempts) {
-            $GLOBALS['log']->warning(
+            $this->log->warning(
                 "AUTH: Max failed login attempts exceeded for IP '{$ip}'."
             );