Taint-checking means using Perl with the -T command line flag. This puts Perl into a mode where it assumes that all data from the outside world is 'tainted' and it won't let you use it until you'll cleaned it up.

This is a good thing.

See perldoc perlsec for more details.

--
<http://www.dave.org.uk>

European Perl Conference - Sept 22/24 2000, ICA, London
<http://www.yapc.org/Europe/>