Hi, welcome back to Section nine wireless attacks.
In this video,
we are going to cover wireless networking for security professionals.
Let's iPhone in. So what exactly is wireless networking?
To put simply,
wireless networking refers to the use of wireless signals to interconnect
devices to a network without a need for using any sort of physical
cables.
Wireless networks commonly use radio weaves to transmit data between
devices. However,
these radio waves can be intercepted by an ethical hacker or even a
trade actor.
These are unauthorized parties to secure wireless networks.
It's important for security professionals and IT professionals to use
encryption to protect the data that is in transit.
The most commonly used encryption protocols for wireless networks are
WPA two and WPA three.
It is also important to use strong passwords and change them regularly,
as well as disabling any unnecessary network services or
features on the wireless router or the access point. Network.
Segmentation can also help to limit access to sensitive data by
creating separate subnets or subnets for different users and devices.
Wireless access points should be configured with appropriate security
settings such as disabling the broadcast of SS i d,
which is a silver set identifier. In other words, it's a network name. However,
keep in mind that disabling the SS I D broadcast does not necessarily
make the network invisible.
A cybersecurity professional and even a threat actor can discover hidden
networks within a few seconds.
An additional security feature is to enable market address filtering
and even set up a firewall regularly.
Monitoring the network activities and security logs can help you detect
and respond to any unauthorized access attempts or security issues on your
wireless network. With wireless networks,
they can be vulnerable to various types of attacks,
including ev shopping man in the middle attack denial of serious attacks.
Understanding these types of threats and implementing appropriate security
measures is essential for maintaining the security of your wireless
network infrastructure,
regular security training and education for users and IT staff can
help to promote best practices and prevent security breaches on wireless
network. Next, let's take a look at the various wireless standards.
This table shows a different i e E wireless standards,
their operating frequency maximum data rate, and the year they will introduce.
Commonly, we will have a two 11 N Networks, AC networks,
and even ex networks.
Notice the frequencies for some of these networks are 2.4 gigs and even five
KZ F frequency.
If you were to perform any sort of ethical hacking techniques or on wireless
networks,
it's important that you have a wireless network adapter that is designed to
operate on the 2.4 KZ frequency and the five KZ frequency.
In addition,
your network adapter should support pocket injection in terms of
wireless security standards. There's a W E P,
which is wide equivalent privacy that was introduced back in 1997.
This wireless security standard uses static 64 and 1 28
bit encryption keys. However,
it is considered to be insecure due to known security weaknesses found within
the encryption algorithm. Therefore,
it is not recommended to use W E P networks.
The successor is W P E wifi protected access,
which was introduced back in 2003.
WW P used a set of dynamic 256 bit
encryption keys,
and it also used a temporal key entirety protocol T for stronger encryption.
However,
it is still considered to be insecure due to known security vulnerabilities
within the data encryption. Next,
we have WPA two protected access,
which introduced to replace WPA
encryption known as encryption standard.
It also used the counter cipher mode with blockchaining message,
authentication mode protocol,
or ccmp to improve the data encryption process
with WPA two,
it provides improved security over w p and is widely used
today in many wireless networks.
The latest version is called WPA three wifi Protected Access,
which was introduced not too long ago back in 2018.
This provides improved security features including individualized data
encryption for each device, therefore,
protecting against offline dictionary attacks and improving the encryption
protocols with WP three.
It uses a simultaneous authentication of equals protocol
instead of the pre shared key that was used with WP two. However,
to use WP three,
it requires new hardware to support its features and is not widely adopted just
yet. During the course of this video,
you have learned the fundamentals of wireless networking, wireless standards,
and wireless security standards. In the next video,
we'll get started by learning wireless reconnaissance.
I hope this video has been informative for you,
and I will see you in the next one.