It is very important to keep our equipment protected at all times. There are many threats on the Internet and they can affect us in one way or another and put our privacy and security at risk. Therefore, we must have antivirus, firewalls, keep the devices updated ... Now, when it comes to wireless networks we must try to increase security even more.
A Wi-Fi network can
be used by a hacker to break into a home or business network. It could
take control of connected equipment and exploit potential vulnerabilities to
attack. This makes it necessary to have a good security strategy and to
always be protected.
Security problems increase when we connect to a public
Wi-Fi network. An attacker could have created it simply for the purpose of
stealing information. It could have gotten into a legitimate Wi-Fi as
well, but use it to accomplish its goals.
A problem that would affect privacy is the fact that
through a Wi-Fi network they can know what the MAC address of
our device is. They could even track us down in a mall and see our
movements.
What are random
hardware addresses
After explaining the importance of maintaining
security in Wi-Fi networks, we must talk about what random
hardware addresses are and, most importantly, why it can protect our devices. It's
a feature that's built into Windows, the most widely used desktop operating
system, and it can come in handy.
Through Wi-Fi we can send information even
without being connected. This helps to find networks and thus see
availability. It is something that all devices emit. For example,
even if we are not connected to a network, our computer sends a signal (as long
as we have Wi-Fi activated) to search for networks in the area. This
signal sends the unique physical hardware address, also known as the MAC
address.
Each computer has a unique MAC address . It
is something that identifies the device and could help us, for example, to
create a MAC filter on the router and have a white list. It is also
necessary to establish a connection with any Wi-Fi network.
Now, if we send that information to an insecure Wi-Fi
network, it could pose a problem for our privacy . Let's
say, for example, that we are in a shopping center where there are many
wireless networks available and that are part of the same network. They
could know our movements, where we are, by constantly sending the MAC address,
even without connecting us.
So what does the Windows Random Hardware Address feature
do? Basically generating multiple random MAC addresses . As
long as the hardware of our Wi-Fi adapter allows it, we can configure this
function and not send our real MAC address, but a large number of random
addresses, which are changing, which will allow us to avoid being tracked.
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