This looks especially foolish now. Schneier is a so-called expert who has testified in front of congress. He should be more careful when engaging in rampant speculation like this. What basis did he have for such an assumption?
I don’t understand why every single cyberattack is immediately blamed on Russia or China. It’s an intellectual embarrassment, and especially worse when it’s coming from experts within the community rather than politicians in congress.
But I’m sure the DNC hack was the work of an advanced nation state. Probably had nothing to do with sharing passwords like runner123 over email...