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

Recently, a PC device called brcm-lvg has been showing up on my network in the finder sidebar under sharing.


It started showing up around the time that I upgraded to Yosemite, V 10.10.4. This could just be coincidence.


I have no idea what this device is and a Google search returns unhelpful results. After upgrading to Yosemite, I noticed my Firewall had been turn off. When it's turned off, it says I'm connected to the "brcm-lvg" device as a guess. This device contains one empty folder called "Shared." How could I possibly be connected to this device if I never connected myself to it?


When I turn the firewall on, the mysterious device says the Connection Failed. However, I can't remove the device from the sidebar at all. Even when I press the eject button, it stays there.


What is this "brcm-lvg" device? Is my computer being hacked?


Thank you for your help

MacBook Pro (Retina, 15-inch, Late 2013), OS X Yosemite (10.10.4), null

Posted on Aug 19, 2015 11:08 AM

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Posted on Apr 4, 2016 8:49 PM

This shared BRCM-LVG showed up on my Mac when we got a new ISP "Time Warner Cable" and they installed a Tricolor TC8715D router/modem. It concerned me so thought I would try a quick Google search and found this forum. Not being one of these "everyone's out to get me" conspiracy nuts I thought I would do some research so here's what I've found. zhen424 seems to be right on the money. I went through the setting and found my DLNA and Digital Media Server and USB Settings were all on by default. Turned them all off. Reset router. A quick IP scan later and the mysterious BRCM-LVG device is gone.

Here's how I understand this works. If you wish to... you could connect a Hard Drive via USB to your shiny new router and use it as a Network Attached Storage (NAS) device. But, in order to access this, now wirelessly connected, mass storage device there needs to be a intermediary device that handles the connection, searches said HD for files and transfers to PC, takes incoming files from PC and writes them to the HHD, etc. Built into the TC8715D there exists such a device and it's main chipset is made by Broadcom which explain the name. Now... if you're still worried about it, just turn off the features i mentioned above, reset the router and eject the BRCM-LVG device from your Macs. Enjoy!

46 replies

Sep 2, 2015 12:30 PM in response to OBother

I noticed the SAME THING on my new laptop as I was setting up the network in my NYC apartment yesterday!! the brcm-lvg "data storage" icon. The internet connection is provided by Time Warner Cable, of course, in a building on the UWS. CREEPED ME OUT. Now that I am away from that location -- 100 miles away, in fact -- the icon is still there under "Recent Items," "Servers," then an icon that says "storage" next to it. When I click on it now, it says " The server may not exist or it is unavailable at this time. Check the server name or IP address, check your network connection, and then try again."


So is it just something that anyone who is using a TWC wireless network in their home is going to end up using, like it or not? Like you, I would like to know the whole story behind it.


Thanks.

Mar 8, 2016 12:51 PM in response to Grant Bennet-Alder

I guess the device manufacturer thought that it would be easier for users if they automatically enabled the service. It can be disconcerting to see an unknown device appear in the Sharing section.


One the thing to remember is that when things appear in the Sharing section it only means that you can see them. It does not mean that you are sharing anything to them.

Mar 8, 2016 7:38 PM in response to cbg2115

With cable-TV wiring, a Router that services all the Routers in your neighborhood is often located on a pole in your neighborhood, and the connection for all the individually-controlled Routers is a multiplexed connection, that is, it has traffic for every device in your neighborhood (and your Router picks off the correct packets by address). Going upstream, the situation is similar -- all the upstream traffic is combined onto the upstream data pathway as well, and has the potential to be visible to everyone in the neighborhood.


I agree that this is likely some sort of mis-configuration that allows your neighbors' devices to show as "Shared" on your network, but I am not certain just what the error is. Perhaps it is a side effect of Bonjour discovery.

Mar 23, 2016 2:20 PM in response to cbg2115

BRCM is the stock symbol for Broadcom Corporation. They make semiconductors for wired & wireless communications. Company products are embedded in many communication products.

I found the same BRCM stuff on my PC. I use Comcast and have a Netgear cable modem router.

I bet that this feature is built into a chip manufactured by Broadcom.

Welcome to the intrusive world of "internet for everything," and turd-based computing.

Aug 19, 2015 1:52 PM in response to Linc Davis

I have a Technicolor modem with a built in router that Time Warner Cable recently installed. It has usb ports, but nothing is attached to them. The only thing coming out of the modem/router is the coaxial cable and the power adapter. This device is what's sending the wifi signal to my computer. It is password protected.


Does this answer your question when you ask whether a hard drive is connected to the router? if it doesn't I will do my best to further elaborate. Thankyou for your help

Sep 17, 2015 8:02 PM in response to cbg2115

I have very little technical knowledge about this, but I was having problems getting kicked off my TWC modem. A technician came out and said that this was their newest modem and that there had been a lot of people experiencing the same problem as me. The tech went out to box outside and did something. When he came back he said that they were aware of the problem and that they would be monitoring the modem remotely and that they would analyze data and send patches when available. Is this the reason for "brcm-lvg?"

Feb 23, 2016 3:07 AM in response to cbg2115

Like others here, I have a new 'Technicolor' Time Warner modem device. I plugged in a USB device for the first time since getting the new modem and when I took it out this brcm-lvg showed up in Finder as a Shared folder, which I never set up. Also, under Devices, a Remote Disc now also appears. What the....!?!?


It concerns me that both the shared folder and the Remote Disk are suddenly showing up in Finder. I turned off 'Screen Sharing' but still this brcm-lvg shared folder is showing up. Unlike others here, I don't know enough about all of these things and it's concerning me that this is a security issue....and this thread seems to have thoughts in both directions on that....so now I don't know what to do. Anyone....?

Feb 23, 2016 3:15 AM in response to hackermonk

How do I find the ip4 and ip6 to reset them? And also, how do I find who is on my router? Although, since I am next to the router I am actually not on WiFi with this modem but using the ethernet cable to save bandwidth.


How did you get to custom firewall settings? Also, did you reset the router's password or your computer password? <sigh> I'm so confused about what to do. This brcm-lvg AND an unknown 'Remote Disk' are showing up in my Finder since yesterday when I put a USB thumb drive into download some files.

I guess I should call TimeWarner but fear that I will be met with the same 'no one knows' thing you found.

Do you think I should be worried? So may opposing opinions here, the most recent one seeming to say it is innocuous.

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

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