Wednesday's
bombshell advisory declaring TrueCrypt unsafe to use touched off a tsunami of comments on
Ars,
Twitter, and elsewhere. At times, the armchair pundits sounded like characters in Oliver Stone's 1991 movie
JFK, as they speculated wildly—and contradictorily—about what was behind a notice that left so many more questions than answers. Here are some of the more common theories, along with facts that either support or challenge their accuracy.