What is the name of the box that hackers connect to a router in order to spy on all your traffic?

I watched a documentary where hackers entered a victim’s house by pretending to be from the ISP and then connected a box to a router in order to spy on all of the victim’s traffic. Later, the hackers retrieved many passwords, e.g., iCloud … Continue reading What is the name of the box that hackers connect to a router in order to spy on all your traffic?