Scanned the Router network on my Imac Now TVand discovered an unknown device 192.168.0.3 (as a computer) showing secured box ticked. Typed this in address bar of browser and it refused to accept connection.
Ticked info circle and came up with INTERFACES F6:4C:D6:D7:80:6E as well as IP address, all other info unknown.
Have I been hacked?
Avast Ultimate has not found any issues.