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.
I believe your temps are a bit high. Mine only breaks about 71-72C while gaming. Your temps are not harmful to your card but definitely a bit higher than they probably should be.
The computer itself may be open, but are you putting the computer in an enclosed space of any kind? You need to give it ample room for hot air to escape.