Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
You were very close to having the correct solution. Here's my take on it.
In domain A, put User A in a global group. In domain B, make sure Group B is a domain local group and add the global group from domain A. If you have multiple global groups in domain A that you'd like to add to Group B...
FROM:
DR. AHMED IBRAHIM
HEAD OF ARCHIVES / RECONCILIATION
BOND BANK NIG. LTD.
VICTORIA ISLAND, LAGOS.
RE: NEXT OF KIN.
DEAR,
DO NOT BE SURPRISED AT RECEIVING THIS MAIL. I BELIEVE THAT THERE IS NO HARM IN TRYING SOMEONE TRUSTWORTHY AT HEART. A NEW RELATIONSHIP WILL GO A LONG WAY TO...