Is he a Java guy?
No, he's upper management. We're beyond the pale of tech-savvy at this point. The guy believes this because someone he trusts (probably a vendor) told him so. What I'm looking for is essentially literature that talks about how secure Perl is, or speaks to other big-name orgs using Perl for "high-risk" data like financial transactions. Something digestible for the upper-manglement set.
Ramblings and references
The Code that can be seen is not the true Code
I haven't found a problem yet that can't be solved by a well-placed trebuchet