WWW/WWWForm, does Unity validate SSL certificates?

I have been reading either contrasting or possibly outdated information regarding this topic.

Does Unity, in July 17th 2016, validate the SSL certificates received when communicating with an HTTPS server?

If so, can someone assure that it is immune to MITM attacks or not? And is this platform dependent or does it work regardless (e.g. Desktop, Web, Android, iOS, etc.)?

Thanks!

According to unity script reference it does support https protocol so SSL should work on every device (except web, web can only access pages on the same server).