$ial(nick) returns the full address - nick!user@123.host.com
$address($me,2) is only the host part of that - *!*@123.host.com
You need $address($me,5) to match all possible banmasks, which is exactly the same as $ial($me) smile

Also see /help /if for info on &&.
Code:
on @*:ban:#:{
  if (%securety == 1) [color:red]&&[/color] ($banmask iswm $address($me,[color:red]5[/color])) {
    kick $chan $nick 8Security Mode4, 9Dont Try to Ban Me! }
  }
}