[dchest]

It was reported to them before, they said it's not a bug:

   @rootlabs: Got the expected "not a bug" from @SlackHQ so
   feel free to see names of MSFT, Google chats via login
   info leak. http://t.co/kldKXN7NTf

https://twitter.com/rootlabs/status/499723782244675584

[4ndr3vv]

13th August? man, someone messed up.