Is Perl's taint mode useful?

Question

perl -T

Do you use it? Does it help you finding security holes in your Perl scripts?

Answer 1

Oh, gods, no. Taint mode should have been yanked from Perl 15-20 years ago. It prevents nothing as you cannot possibly validate the response of certain commands. It gets people to believe they're secure, but all they do is /(.*)/. It breaks nearly everything on Windows (even being able to get an accurate temporary directory). DO NOT USE TAINT