diff --git a/CHANGED b/CHANGED
index e0a425ff1..be4795706 100644
--- a/CHANGED
+++ b/CHANGED
@@ -1,5 +1,6 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+  - changed: allowed.pm/fhem.pl: SecurityCheck cleanup, Forum #81509
   - new:     88_xs1Bridge: New modul to read xs1 EZcontrol
   - change:  93_DbRep: V7.0.0, changelog:
                        - faster exec if no time attribut/aggregation is set
diff --git a/FHEM/01_FHEMWEB.pm b/FHEM/01_FHEMWEB.pm
index 9a5520f06..1dd0e0c6c 100644
--- a/FHEM/01_FHEMWEB.pm
+++ b/FHEM/01_FHEMWEB.pm
@@ -132,7 +132,7 @@ FHEMWEB_Initialize($)
   $hash->{AttrFn}  = "FW_Attr";
   $hash->{DefFn}   = "FW_Define";
   $hash->{UndefFn} = "FW_Undef";
-  $hash->{NotifyFn}= ($init_done ? "FW_Notify" : "FW_SecurityCheck");
+  $hash->{NotifyFn}= "FW_Notify";
   $hash->{AsyncOutputFn} = "FW_AsyncOutput";
   $hash->{ActivateInformFn} = "FW_ActivateInform";
   no warnings 'qw';
@@ -226,37 +226,6 @@ FHEMWEB_Initialize($)
   }
 }
 
-#####################################
-sub
-FW_SecurityCheck($$)
-{
-  my ($ntfy, $dev) = @_;
-  return if($dev->{NAME} ne "global" ||
-            !grep(m/^INITIALIZED$/, @{$dev->{CHANGED}}));
-  my $motd = AttrVal("global", "motd", "");
-  if($motd =~ "^SecurityCheck") {
-    my @list1 = devspec2array("TYPE=FHEMWEB");
-    my @list2 = devspec2array("TYPE=allowed");
-    my @list3;
-    for my $l (@list1) { # This is a hack, as hardcoded to basicAuth
-      next if(!$defs{$l});
-      my $fnd = 0;
-      for my $a (@list2) {
-        next if(!$defs{$a});
-        my $vf = AttrVal($a, "validFor","");
-        $fnd = 1 if($vf && ($vf =~ m/\b$l\b/) && AttrVal($a, "basicAuth",""));
-      }
-      push @list3, $l if(!$fnd);
-    }
-    $motd .= (join(",", sort @list3).
-              " has no associated allowed device with basicAuth.\n")
-        if(@list3);
-    $attr{global}{motd} = $motd;
-  }
-  $modules{FHEMWEB}{NotifyFn}= "FW_Notify";
-  return;
-}
-
 #####################################
 sub
 FW_Define($$)
@@ -1070,8 +1039,7 @@ FW_answerCall($)
     } else {
       my $motd = AttrVal("global","motd","none");
       if($motd ne "none") {
-        $motd =~ s/\n/<br>/g;
-        FW_addContent(">$motd</div");
+        FW_addContent("><pre class='motd'>$motd</pre></div");
       }
     }
   }
diff --git a/FHEM/96_allowed.pm b/FHEM/96_allowed.pm
index 5ea3eb730..3ae9bc257 100644
--- a/FHEM/96_allowed.pm
+++ b/FHEM/96_allowed.pm
@@ -50,6 +50,7 @@ allowed_Define($$)
   }
   $auth_refresh = 1;
   readingsSingleUpdate($hash, "state", "validFor:", 0);
+  SecurityCheck() if($init_done);
   return undef;
 }
 
@@ -104,6 +105,7 @@ allowed_Authenticate($$$$)
     my $basicAuth = AttrVal($aName, "basicAuth", undef);
     delete $cl->{".httpAuthHeader"};
     return 0 if(!$basicAuth);
+    return 2 if(!$param);
 
     my $FW_httpheader = $param;
     my $secret = $FW_httpheader->{Authorization};
@@ -173,6 +175,7 @@ allowed_Authenticate($$$$)
     my $pw = AttrVal($aName, "password", undef);
     if(!$pw) {
       $pw = AttrVal($aName, "globalpassword", undef);
+      return 2 if($pw && !defined($param));
       $pw = undef if($pw && $cl->{NAME} =~ m/_127.0.0.1_/);
     }
     return 0 if(!$pw);
@@ -244,8 +247,10 @@ allowed_Attr(@)
     } else {
       delete($hash->{$attrName});
     }
-    readingsSingleUpdate($hash, "state", "validFor:".join(",",@param), 1)
-      if($attrName eq "validFor");
+    if($attrName eq "validFor") {
+      readingsSingleUpdate($hash, "state", "validFor:".join(",",@param), 1);
+      InternalTimer(1, "SecurityCheck", 0) if($init_done);
+    }
 
   } elsif(($attrName eq "basicAuth" ||
            $attrName eq "password" || $attrName eq "globalpassword") &&
@@ -253,6 +258,7 @@ allowed_Attr(@)
     foreach my $d (devspec2array("TYPE=(FHEMWEB|telnet)")) {
       delete $defs{$d}{Authenticated} if($defs{$d});
     }
+    InternalTimer(1, "SecurityCheck", 0) if($init_done);
   }
 
   return undef;
@@ -266,11 +272,16 @@ allowed_fhemwebFn($$$$)
   my $hash = $defs{$d};
 
   my $vf = $defs{$d}{validFor} ? $defs{$d}{validFor} : "";
-  my @arr = map { "<input type='checkbox' ".($vf =~ m/\b$_\b/ ? "checked ":"").
-                   "name='$_' class='vfAttr'><label>$_</label>" }
+  my (@F_arr, @t_arr);
+  my @arr = map {
+              push(@F_arr, $_) if($defs{$_}{TYPE} eq "FHEMWEB");
+              push(@t_arr, $_) if($defs{$_}{TYPE} eq "telnet");
+              "<input type='checkbox' ".($vf =~ m/\b$_\b/ ? "checked ":"").
+                   "name='$_' class='vfAttr'><label>$_</label>"
+            }
             grep { !$defs{$_}{SNAME} }
             devspec2array("TYPE=(FHEMWEB|telnet)");
-  return "<input id='vfAttr' type='button' value='attr'> $d validFor <ul>".
+  my $r = "<input id='vfAttr' type='button' value='attr'> $d validFor <ul>".
           join("<br>",@arr)."</ul><script>var dev='$d';".<<'EOF';
 $("#vfAttr").click(function(){
   var names=[];
@@ -279,6 +290,15 @@ $("#vfAttr").click(function(){
 });
 </script>
 EOF
+
+  $r .= "For ".join(",",@F_arr).
+        ": \"set $d basicAuth &lt;username&gt; &lt;password&gt;\"<br>"
+    if(@F_arr);
+  $r .= "For ".join(",",@t_arr).
+        ": \"set $d password &lt;password&gt;\" or".
+        "  \"set $d globalpassword &lt;password&gt;\"<br>"
+    if(@t_arr);
+  return $r;
 }
 
 1;
diff --git a/FHEM/98_telnet.pm b/FHEM/98_telnet.pm
index bab883691..8e6b38a42 100644
--- a/FHEM/98_telnet.pm
+++ b/FHEM/98_telnet.pm
@@ -20,7 +20,6 @@ telnet_Initialize($)
   $hash->{AsyncOutputFn}  = "telnet_Output";
   $hash->{UndefFn} = "telnet_Undef";
   $hash->{AttrFn}  = "telnet_Attr";
-  $hash->{NotifyFn}= "telnet_SecurityCheck";
   $hash->{AttrList} = "globalpassword password prompt allowedCommands ".
                         "allowfrom SSL connectTimeout connectInterval ".
                         "encoding:utf8,latin1 sslVersion";
@@ -57,39 +56,6 @@ CommandTelnetEncoding($$)
   return $ret;
 }
 
-#####################################
-sub
-telnet_SecurityCheck($$)
-{
-  my ($ntfy, $dev) = @_;
-  return if($dev->{NAME} ne "global" ||
-            !grep(m/^INITIALIZED$/, @{$dev->{CHANGED}}));
-  my $motd = AttrVal("global", "motd", "");
-  if($motd =~ "^SecurityCheck") {
-    my @list1 = devspec2array("TYPE=telnet");
-    my @list2 = devspec2array("TYPE=allowed");
-    my @list3;
-    for my $l (@list1) { # This is a hack, as hardcoded to basicAuth
-      next if(!$defs{$l} || $defs{$l}{TEMPORARY}); # Blocking.pm /Forum #47022
-      my $fnd = 0;
-      for my $a (@list2) {
-        next if(!$defs{$a});
-        my $vf = AttrVal($a, "validFor","");
-        $fnd = 1 if(($vf && $vf =~ m/\b$l\b/) && 
-                    (AttrVal($a, "password","") ||
-                     AttrVal($a, "globalpassword","")));
-      }
-      push @list3, $l if(!$fnd);
-    }
-    $motd .= (join(",", sort @list3).
-            " has no associated allowed device with password/globalpassword.\n")
-        if(@list3);
-    $attr{global}{motd} = $motd;
-  }
-  delete $modules{telnet}{NotifyFn};
-  return;
-}
-
 ##########################
 sub
 telnet_ClientConnect($)
diff --git a/fhem.pl b/fhem.pl
index 1f3eac668..da3ab7223 100755
--- a/fhem.pl
+++ b/fhem.pl
@@ -94,6 +94,7 @@ sub RefreshAuthList();
 sub RemoveInternalTimer($;$);
 sub ReplaceEventMap($$$);
 sub ResolveDateWildcards($@);
+sub SecurityCheck();
 sub SemicolonEscape($);
 sub SignalHandling();
 sub TimeNow();
@@ -574,10 +575,6 @@ if($pfn) {
   close(PID);
 }
 
-my $sc_text = "SecurityCheck:";
-$attr{global}{motd} = "$sc_text\n\n"
-        if(!$attr{global}{motd} || $attr{global}{motd} =~ m/^$sc_text/);
-
 $init_done = 1;
 $lastDefChange = 1;
 
@@ -593,25 +590,11 @@ foreach my $d (keys %defs) {
   }
 }
 
+SecurityCheck();
+
 $fhem_started = time;
 DoTrigger("global", "INITIALIZED", 1);
 
-$attr{global}{motd} .= "Running with root privileges."
-        if($^O !~ m/Win/ && $<==0 && $attr{global}{motd} =~ m/^$sc_text/);
-$attr{global}{motd} .=
-        "\nRestart FHEM for a new check if the problem is fixed,\n".
-        "or set the global attribute motd to none to supress this message.\n"
-        if($attr{global}{motd} =~ m/^$sc_text\n\n./);
-my $motd = $attr{global}{motd};
-if($motd eq "$sc_text\n\n") {
-  delete($attr{global}{motd});
-} else {
-  if($motd ne "none") {
-    $motd =~ s/\n/ /g;
-    Log 2, $motd;
-  }
-}
-
 my $osuser = "os:$^O user:".(getlogin || getpwuid($<) || "unknown");
 Log 0, "Featurelevel: $featurelevel";
 Log 0, "Server started with ".int(keys %defs).
@@ -5364,4 +5347,40 @@ restoreDir_saveFile($$)
   }
 }
 
+sub
+SecurityCheck()
+{
+  return if(AttrVal("global", "motd", "") eq "none");
+  my @fnd;
+  foreach my $sdev (devspec2array("TYPE=(telnet|FHEMWEB)")) {
+    next if(!$defs{$sdev} || $defs{$sdev}{TEMPORARY});
+    my $hash = { SNAME=>$sdev, TYPE=>$defs{$sdev}{TYPE} };
+    push(@fnd, "  $sdev is not password protected")
+        if(!Authenticate($hash, undef));
+  }
+  if(@fnd) {
+    push @fnd, "";
+    my @l = devspec2array("TYPE=allowed");
+    if(@l) {
+      push @fnd, "Protect this FHEM installation by ".
+                 "configuring the allowed device $l[0]";
+    } else {
+      push @fnd, "Protect this FHEM installation by ".
+                 "defining an allowed device with define allowed allowed";
+    }
+  }
+
+  if($^O !~ m/Win/ && $<==0) {
+    push(@fnd, "Running with root privileges is discouraged.")
+  }
+
+  if(@fnd) {
+    unshift(@fnd, "SecurityCheck:");
+    push(@fnd, "You can disable this message with attr global motd none");
+    $attr{global}{motd} = join("\n", @fnd);
+  } elsif($attr{global}{motd} =~ m/^SecurityCheck/) {
+    delete $attr{global}{motd};
+  }
+}
+
 1;
diff --git a/www/pgm2/fhemweb.js b/www/pgm2/fhemweb.js
index f76ac1c0b..5daf49e3d 100644
--- a/www/pgm2/fhemweb.js
+++ b/www/pgm2/fhemweb.js
@@ -248,6 +248,26 @@ FW_jqueryReadyFn()
     $(this).data('delayTimer', wait);
   });
 
+  $("pre.motd").each(function(){ // add links for passwort setting
+    var txt = $(this).text();
+    txt = txt.replace(/(configuring|define|attr) .*/g, function(x) {
+      return "<a href='#'>"+x+"</a>";
+    });
+    $(this).html(txt);
+    $(this).find("a").click(function(){
+      var txt = $(this).text();
+      var ma = txt.match(/configuring.*device (.*)/);
+      if(ma)
+        location.href = FW_root+"?detail="+ma[1];
+      FW_cmd(FW_root+"?cmd="+encodeURIComponent(txt)+"&XHR=1",
+        function(data){
+          if(txt.indexOf("attr") == 0) $("pre.motd").html("");
+          if(txt.indexOf("define") == 0)
+            location.href = FW_root+"?detail=allowed";
+        });
+    });
+  });
+
   FW_smallScreenCommands();
   FW_inlineModify();
   FW_rawDef();