Just be cautious when you log in to sg forum when you come
across this when trying to log in. My advise just close your
computer and try to log in later.
There is a problem with this website’s security certificate.
The security certificate presented by this website was issued
for a different website’s address.
Security certificate problems may indicate an attempt to fool
you or intercept any data you send to the server.
We recommend that you close this webpage and do not continue to
this website.
Click here to close this webpage.
Continue to this website (not recommended).
More information
If you arrived at this page by clicking a link, check the
website address in the address bar to be sure that it is the
address you were expecting.
When going to a website with an address such as https://example.com, try
adding the ‘www’ to the address, https://www.example.com.
For more information, see “Certificate Errors” in Internet
Explorer Help.