A possible hacker on home network?
So I've noticed unfamilier activity on my Xfinity Xfi wifi home network. There's a device called ESP_B4F1D7. When i did some research on google i found out that it's technically a device used to hack into your home network. all of the tvs in the house are smart TVs and one of my old roomates told me that someone took a picture of her thru her tv and sent it to her. also i've recently got a threat notification saying "that my network was targeted by a device on my network but was blocked because of my secuirty. i paused these devices i feel are invading the privacy in my home. I am very concerned.
what should i do about this, and how do i find out who is compromising my network?