> Volexity eventually tracked the hackers on that second network to two possible points of intrusion. The hackers appeared to have compromised a VPN appliance owned by the other organization. But they had also broken into the organization's Wi-Fi from another network's devices in the same building, suggesting that the hackers may have daisy-chained as many as three networks via Wi-Fi to reach their final target. “Who knows how many devices or networks they compromised and were doing this on,” says Adair.
If you need real security, you really need to physically disable Wi-Fi.