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WiFi (Wireless) Password Security - WEP, WPA, WPA2, WPS Explained

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08:40   |   Apr 25, 2019

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WiFi (Wireless) Password Security - WEP, WPA, WPA2, WPS Explained
WiFi (Wireless) Password Security - WEP, WPA, WPA2, WPS Explained thumb WiFi (Wireless) Password Security - WEP, WPA, WPA2, WPS Explained thumb WiFi (Wireless) Password Security - WEP, WPA, WPA2, WPS Explained thumb

Transcription

  • Hello, everyone! In this video we're gonna talk about
  • the different wireless security methods
  • and protocols that are used in wireless networks.
  • Now most of us had connected to a Wi-Fi network
  • with our laptop, tablet or even our smartphone,
  • and to join that network with our device
  • you had to select a network name and you had to supply a password.
  • Now Wi-Fi network can be just open with no password required,
  • so that means that anybody can join it.
  • However in the majority of cases Wi-Fi networks will be secure
  • and will require a password.
  • Now there are several different protocols that are used
  • for securing a Wi-Fi network.
  • So let's start with a secure protocol called WEP
  • WEP or Wired Equivalent Privacy was developed in 1999
  • and it's the earliest security protocol that was used for wireless networks.
  • And also as its name implies
  • it's meant to supply the same security to wireless networks
  • as it did for wired networks.
  • However this turned out not to be the case
  • because after a time it was found out
  • that a 40-bit encryption key that WEP used
  • was vulnerable and not secure.
  • And therefore it was easily hackable.
  • So that's why today WEP is no longer used
  • and modern wi-fi routers won't even have it as an option anymore.
  • So a better security protocol was needed for wireless networks.
  • And that brings us to WPA
  • WPA or Wi-Fi Protected Access is another wireless security protocol
  • that was developed to solve the problems of WEP.
  • WPA is far better than WEP
  • and this is because it uses a stronger encryption methods called TKIP
  • which stands for Temporal Key Integrity Protocol.
  • And TKIP dynamically changes its keys as it's being used
  • and this ensures data integrity.
  • But even though WPA is more secure than WEP
  • even today WPA is outdated
  • because TKIP did have some vulnerabilities.
  • And that brings us to WPA2
  • WPA2 was developed to provide even stronger security than WPA.
  • And it does this by requiring the use of a stronger encryption method.
  • While WPA uses TKIP for encryption
  • which is known to have some limitations
  • WPA2 uses AES which stands for Advanced Encryption Standard
  • AES uses a symmetric encryption algorithm
  • which makes it strong enough to resist a brute-force attack
  • In fact AES is so secure that the U.S. federal government has adopted it
  • And is now using it to encrypt sensitive government data.
  • Now when you log into the Wi-Fi router's configuration page
  • an you go into the Wi-Fi security section
  • this is where you would find the different security protocols that you can choose from
  • to protect your Wi-Fi network
  • So here is an example from an older Linksys router
  • and here you can see the WEP, WPA and WPA2 protocols that we discussed.
  • Now as I said this router is a few years old and it still has WEP as an option.
  • However newer routers like this one here won’t even have WEP as an option
  • because WEP is weak and outdated and is no longer used
  • and thank god for that because it was garbage.
  • Now you also noticed that on both of these routers
  • there’s an option that has both WPA and WPA2
  • and this is a mixed security option.
  • This option enables WPA and WPA2 at the same time
  • so it’ll use both TKIP and AES security.
  • Now the reason for this option is for compatibility purposes
  • because some older devices like prior to 2006
  • may not be compatible with using AES encryption that’s used with WPA2
  • and so these older devices will connect to the older WPA protocol
  • but at the same time modern devices will connect to WPA2.
  • Now some people might ask
  • why not just choose the mixed option all the time
  • since it’s the most compatible with all devices.
  • Well you can do this but the problem is that in addition to using AES
  • it's also using TKIP and since TKIP is not as strong as AES
  • you’re leaving your network more vulnerable to a breach.
  • However if all of your devices are modern then the best option is to choose WPA2 which only uses AES.
  • Now the next generation of wireless security is WPA3.
  • WPA3 was introduced in 2018 and according to the official Wi-Fi website
  • https://www.wi-fi.org/
  • WPA3 provides cutting edge security protocols to the market.
  • It adds new features to simplify Wi-Fi security and enable more robust authentification
  • and it will receive increased protections from password guessing attempts.
  • Now WPA3 won’t be available on every Wi-Fi router that you purchase today
  • because it was just introduced last year.
  • However you will start to see it more and more on Wi-Fi products in the next few months.
  • Now so far we discussed a few password protected security protocols
  • but there is another wireless security method that doesn’t require you to type in a password
  • and this method is called WPS.
  • WPS stands for Wi-Fi Protected Setup and WPS was designed for people who know little about wireless networks
  • to make it as easy as possible for their devices to join a wireless network.
  • So here is a WPS configuration page for our router.
  • And there are a couple of different methods that are used with WPS
  • but by far the most common method is the push button method.
  • So with this method you would just press a couple of buttons and then you'd be connected.
  • So for example most routers today will have a physical WPS button that you can press
  • and a lot of Wi-Fi printers will also have a software or a physical WPS button
  • so let’s say you wanted to connect this wireless printer to your Wi-Fi network
  • so you would press the WPS button on your Wi-Fi router and within 2 minutes you would press the WPS button on your printer
  • and then your printer would connect to the Wi-Fi router in a few seconds.
  • And that’s really as simple as it gets.
  • And you can also use method two if you want if your client has a WPS pin number.
  • So you would just enter that pin number into the field below and within a few seconds it’ll connect.
  • So as stated before WPS is the easiest way to join a wireless network
  • and a lot of manufactures have built their wireless products with WPS.
  • And this is to make it as simple as possible for their costumers to join their device to a wireless network.
  • Now there’s one more method we need to talk about and this is called the Access Control
  • or in some routers it’s called the MAC Filter
  • and with this option you can either allow or block devices from joining your network.
  • Every network adapter has a MAC address and MAC address is a hexadecimal number that uniquely identifies each device on a network
  • and with Access Control you can either allow or block access by using the device’s MAC address.
  • When a device is blocked it would only be able to get an IP address from your router
  • but it won’t be able to communicate with any other device and it would not be able to connect to the Internet
  • so the Access Control is just an extra layer of security that’s in addition to your Wi-Fi password
  • and the Access Control is also for wired devices.

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Description

This is an animated video explaining wireless password security options. It explains WEP, WPA, WPA2, WPA3, WPS, and Access Control. It also explains AES and TKIP.