diff --git a/secrules/rules05.py b/secrules/rules05.py
index f189a61c23d238d92745463c26a274bf9553d44d_c2VjcnVsZXMvcnVsZXMwNS5weQ==..3b1292db05721c46e62b0c8bf10cfef72c68dd93_c2VjcnVsZXMvcnVsZXMwNS5weQ== 100644
--- a/secrules/rules05.py
+++ b/secrules/rules05.py
@@ -2,5 +2,4 @@
 __version__ = '1.0'
 
 from .common import level_rule
-import os, os.path
 from ovms.rtl import lib
@@ -6,4 +5,4 @@
 from ovms.rtl import lib
-from ovms import syidef, uaidef, prvdef, dvidef, ossdef
+from ovms import syidef, uaidef
 from ovms import user
 from ovms import starlet
@@ -8,6 +7,4 @@
 from ovms import user
 from ovms import starlet
-from ovms import itemList
-from ovms import crtl
 
 maxsysgroup = lib.getsyi(syidef.SYI__MAXSYSGROUP)[1]
@@ -12,6 +9,6 @@
 
 maxsysgroup = lib.getsyi(syidef.SYI__MAXSYSGROUP)[1]
-all_users = user.all_users()
+all_users = None
 
 
 def cmp(a, b):
@@ -26,8 +23,9 @@
     prematurely abort the system login sequence.  This may prevent certain
     procedures from being executed during login which may be required for this
     site."""
+    global all_users
 
     if not fmt:
         print('Rule 0501', file=fo)
         print('=========', file=fo)
 
@@ -29,8 +27,11 @@
 
     if not fmt:
         print('Rule 0501', file=fo)
         print('=========', file=fo)
 
+    if all_users is None:
+        all_users = user.all_users()
+
     for u in list(all_users.values()):
         if not (u.flags & uaidef.UAI_M_DISCTLY):
             if fmt:
@@ -46,6 +47,10 @@
     This allows these accounts to change the default Command Language Interpreter
     (CLI ) or CLI tables which may have undesirable consequences.
     It may also allow these accounts to avert any security monitoring during use."""
+    global all_users
+
+    if all_users is None:
+        all_users = user.all_users()
 
     if not fmt:
         print('', file=fo)
@@ -68,6 +73,10 @@
     it be assigned a system level UIC.  In addition, it is recommended that a
     user of a captive account not be allowed to change the password for that
     account -- The LOCKPWD flag should be set."""
+    global all_users
+
+    if all_users is None:
+        all_users = user.all_users()
 
     if not fmt:
         print('', file=fo)
@@ -93,6 +102,10 @@
     it be assigned a system level UIC.  In addition, its PRCLM quota should be
     set to zero in order to prevent such a user to spawn out of the restricted
     environment."""
+    global all_users
+
+    if all_users is None:
+        all_users = user.all_users()
 
     if not fmt:
         print('', file=fo)
@@ -118,6 +131,10 @@
     these accounts are inactive and, therefore, may be unnecessary.  They also
     present a potential security risk in that unauthorized users may attempt to
     gain access to the system using these accounts."""
+    global all_users
+
+    if all_users is None:
+        all_users = user.all_users()
 
     if not fmt:
         print('', file=fo)
@@ -143,6 +160,10 @@
     Stale accounts can present opportunities to penetrate the system.
     These may be stale accounts which are no longer needed.  They may also be
     utilized as a means to gain unauthorized access to the system."""
+    global all_users
+
+    if all_users is None:
+        all_users = user.all_users()
 
     if not fmt:
         print('', file=fo)
@@ -169,6 +190,10 @@
     Improperly defined and maintained user accounts presents opportunities
     to penetrate the system, thus giving an unauthorized user access to the system
     resources."""
+    global all_users
+
+    if all_users is None:
+        all_users = user.all_users()
 
     if not fmt:
         print('', file=fo)
@@ -190,6 +215,10 @@
     Improperly defined and maintained user accounts present opportunities
     to penetrate the system, thus giving an unauthorized user access to the system
     resources."""
+    global all_users
+
+    if all_users is None:
+        all_users = user.all_users()
 
     if not fmt:
         print('', file=fo)
@@ -214,6 +243,10 @@
     of the site.  Improperly defined Login related SYSGEN parameters can result
     in the compromise of the operating system environment, and compromise the
     confidentiality of customer data."""
+    global all_users
+
+    if all_users is None:
+        all_users = user.all_users()
 
     if not fmt:
         print('', file=fo)