C876

And the safety signal that Fang Rui had set up was a security measure for his own system. If his own system was attacked, he would activate this measure.

Of course, normal attacks couldn't even get close to Fang Rui's system. The protective shell on the outside was like a heavenly shield that bounced off, and if a virus seeped in, it would be eaten by the special variant virus on the firewall