A Media Access Control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment.

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How can a webpage get the MAC address?

I was logged on to my router and filling out some information. I clicked a button and a field was automatically filled in with my computer's MAC address. How is this possible? Does it present a ...
2
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6answers
31k views

How to bypass restrictive mac address filtering on home network (not malicious)

Background A short sketch of my situation before I formulate my question: I am on a large home network, which is privately administered by a couple of admins. The network consists of a lan and a ...
2
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2answers
945 views

Can viruses steal MAC addresses? Why is MAC address bad?

Can downloaded executables get my MAC address and send it to somewhere else? Also, why is it a security risk to have someone else use my MAC address, considering that it can be spoofed?
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6answers
1k views

What can my university see if they have my MAC address?

when i first got to my university i had to provide my MAC address to get access to the internet. What i want to know is what information can they get from having my MAC address linked to my name. i ...
4
votes
3answers
12k views

Can a website still detect my real MAC address even if I use different virtual machine each time I visit the website?

Suppose I use a proxy and a different virtual machine each time I visit a particular website, will a website still be able to detect my MAC address and/or uniquely identify me? Assume that the website ...
6
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2answers
1k views

Devices with cryptic names and Chinese ip addresses connected to my router

Please see image. Does anyone have any idea of whats going on? They come and go as attached devices in my attached devices list. I also attached my routers log for you all to see. ...
0
votes
1answer
101 views

How can spoofing a certain MAC address enable sending probe requests that I was never connected to?

I was wondering how could my computer that uses a spoofed MAC address be sending probe requests for APs that I was never connected to? Note: The other computer with the original MAC address I was ...