I'm pretty sure StackOverflow is the best place to ask this but please correct me if I'm wrong.
I have a .Net application that stores encrypted credit card numbers into an sql database, but I have to un-encrypt them temporarily to run a transaction. My question is, should I be concerned about someone being able to read my variable data from a third party program and retrieve the card data? How easy would it be for someone to extract the info from the memory my variable is storing its data in?
Thanks for any info.