Yeah, I believe Doctorow has multiple characters (from multiple books) say something along the lines of "no lock is there for your protection", and I'm certain I've read his opinions on DRM to be negative multiple times.
Hell, I'm fairly certain he had a deal with Barnes and Noble to publish his book without DRM which was nonstandard at the time.
Hell, I'm fairly certain he had a deal with Barnes and Noble to publish his book without DRM which was nonstandard at the time.