Someone posted today about a bitmain site that is clearly fake.
Alas, someone has grabbed yet another fake site, but this time with the bitmain name
It's registered only in November, using namecheap hidden details.
The official bitmain site does not mention them at all:
https://www.bitmain.com/contactNo doubt if you login to it you'll be giving away your customer login details.
WARNING stay away.