The act of providing someone with a tool to change how their own property works ("trafficking in circumvention devices") is a felony.
But there's a tiny saving grace here: for DMCA 1201 to kick in, the "access control" must be "effective." What's "effective?" There's the rub: no one knows.
The penalties for getting crosswise with DMCA 1201 are so grotendous that very few people have tried to litigate any of its contours.
5/