=over =item ${^TAINT} X<${^taint}> Reflects if taint mode is on or off. 1 for on (the program was run with B<-t>), 0 for off, -1 when only taint warnings are enabled (i.e. with B<-t> or B<-tu>). This variable is read-only. This variable was added in Perl v5.8.0. =back