[TYPES] statistics about information-flow programming errors?

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Dear TYPES forum, 


I am searching for studies about the size and impact of programming errors that lead to unintended information flow. I know of some famous leaks that made it to the news. However, I am more interested in statistics about everyday leaks from everyday programs. (I thought this list might be a good place for my question, given the traditional connection between information flow and type systems.) 
Many thanks in advance, 
 Andrei