Encrypt it before you write it to disk. If it comes in over https it's already encrypted, and there is nothing you can do about the exposed number sitting in the system ram, because you have to be able to see it, to process it. But encrypt it before you write it to a disk file, or transfer it via ethernet to another computer.
I'm not really a human, but I play one on earth. flash japh

In reply to Re: Execute Perl code on CGI submit for credit card encryption by zentara
in thread Execute Perl code on CGI submit for credit card encryption by Popcorn Dave

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