What is BRCM-LVG under shared? Is my computer being hacked?

Actually, "brcm-lvg" is a file server built into the router - it's nothing to worry about. If you plug a USB stick or drive into the back of the router, brcm-lvg will be the "device" to which the USB storage is attached.

brcm-lvg is a NAS device part of TC8715D modem. It has its own IP address. This is a nice little modem feature that allows to store shared files in your local network. You can attach a USB dongle to the modem and enable USB in TC8715D configuration page. I only see brcm-lvg when I attach USB and enable USB device. It is possible you may see brcm-lvg even without external storage attached but it is fine.

Hey all,

I just had the same thing happen after receiveing a new Technicolor router from TWC this am. Here is a link to the manual for that particular device that explains that the "brcm-lvg" is simply a media sharing platform from the USB ports on the back of your router. Hope this helps.

https://www.manualslib.com/manual/933809/Technicolor-Tc8717c.html?term=brcm-lvg& page=50#manual

Yeah weird that so many people have encountered this. I just wanted to add my two cents. I had the exact same problem with an Aaris router, 3 Ubee and a technicolor but I typically only see the attached PC immediately after wiping and reinstalling my operating system. I'm not sure how that's related other than the firewall is off by default (a real genius must have thought of that one). My router are all cable telephony ones that do internet and a landline in one device.

I'd also like to add that the "master password" for the Aaris modem is widely available for a number of modems including the one time Warner provided me for a number of years the TG1672. There's a whole separate advanced section meant for TW installers/techs and the password to access it is T!M3W4RN3RC4B13 something like that so that the tech doesn't have to think too hard and can easily remember the password. An installer told me that's how all of the TW arris routers work and thats why they like them. Anyway apparently its a 5 second brute force password hack and they can do whatever they want on your computer. TW and AppleCare both had no idea what any of that meant or pretended not to.

I think its somehow related to a whole bunch of "unknown" extensions in /Library/Extensions and kext with "????" architecture when running kextstat -a -s command. Linc Davis said some of these extensions is /Library/Extensions are a "corruption" very clearly when someone asked about them but they're installed on my recovery partition which I'm assuming is the EFI too?

I absolutely have the answer for you.

As others have suggested, this definitely is a feature of your Time Warner Cable modem.

The reasons why I am 99.9% certain, is that (A) the MAC address for my "Brcm Lvg" is identical for the first eight characters (the first four two-character pairs) as my TWC router; and (B) both my TWC router and my "Brcm Lvg" indicate that they are made by the same company (Technicolor CH USA Inc).

Accordingly, and as there are no other unknown devices on my network that could be the "Brcm Lvg", it absolutely is some sort of feature of the TWC router.

I just want to thank all involved for this thread. I've had the exact same issue for the last 6 wks or so, & it's scared the daylights out of me. It's a relief to know what the situation is, & that there's no real pressing concern. Cheers.

Do you have a router with a hard drive connected to it?

The router should have an administration page on which it shows all the wireless clients connected to it. Does that page show more clients than you know you have?

Hold down the option key and select the Wi-Fi menu in the menu bar. What values is shown for "Security?"

Do you use "Hamachi" or any other VPN service?

There was apparently an unknown device on your network. Since it's not there now, there really isn't any more I can tell you.