Thank you for your quick response. I am literally asking what does searching with exactly a pair of parenthesis with nothing inside "()" do, as many Security Content searches include an empty macro for users to add whitelist/exceptions to their search. And by default these macros are empty. At first I thought they will do nothing, but when I put one such empty macro search, it actually returns with results. I am concern if these empty macro will mess up with my searches. ... View more