This just happened to me, it was extremely weird. Any message I sent to one person, another random contact received them. Very scary bug...<p>More: <a href="https://productforums.google.com/forum/#!category-topic/chat/i-found-a-bug/BHmppu49I0s" rel="nofollow">https://productforums.google.com/forum/#!category-topic/chat...</a>