The problem is your incorrect use of \b in your regex. If you want to ensure a full match use string boundaries not word boundaries: 

$s = 'fred';;
print 'fred' =~ m[\b\Q$s\E\b] ? 'matched' : 'no match';;
matched

$s = '$fred';;
print '$fred' =~ m[\b\Q$s\E\b] ? 'matched' : 'no match';;
no match

$s = '$fred';;
print '$fred' =~ m[^\Q$s\E$] ? 'matched' : 'no match';;
matched

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In reply to Re: passwords with special characters are trying to kill me... no seriously! by BrowserUk
in thread passwords with special characters are trying to kill me... no seriously! by calmthestorm

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