Hello, I just restarted my iMac 21.5 inches and when it finished restarting, I had a weird popup message that I never had before. It asked me to Allow or Deny the access of rsmac_3698 (not sure of the last 4 digits though). I clicked Deny since I never got this notification before. What could it be? I'm very worried. I'm worried I have a virus or something. Thanks in advance. Can someone please help me with this? Thank you so much!