in reply to How to answer "Perl is not secure" objections?
I know this probably isn't the sort of answer you're looking for, but maybe it would be best to ask Manager^3, in a way that makes him feel like you're complimenting his intelligence and tech savvy, that you've never heard of this and would greatly appreciate it if he could either point you to the resource he heard about Perl's "insecurity" from, or demonstrate with an example of his own.
The first step in debunking most myths is figuring out who told them first.
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Seekers of Perl Wisdom