Board Thread:Speculation House/@comment-14138255-20160807005311/@comment-28345522-20161013032632

While there's nothing stating that SEW can harm humans, but nothing has been explicitly said that it doesn't either.

NYCC SPOILERS: Since Cinder was missing after the fight and there's evidence that she got fucked up by something later on, it makes sense to assume that the SEs can hurt anybody.