The 2014 contest was announced on November 2, 2014, and was due January 1, 2015. The results were announced on June 1, 2015. The objective was to write surveillance code for a Twitter-like social networking service, to comply with a secret government surveillance request; but for non-obvious reasons, the code must subtly leak the act of surveillance to a user. The general approach is to obfuscate writes to the user data as writing to surveillance data, and the winning entry did so by implementing a buggy time-checking function that overwrites the input.
