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Don’t Let Attackers Hack Your WiFi: These Are Our Top WiFi Security Tips

How Can Hackers Hack WiFi Networks?


To hack WiFi passwords, hackers take two vastly different approaches. Some hackers rely on low-skill attacks that exploit weak passwords and naïve users, while others can execute highly technical attacks using cutting-edge exploits and sophisticated, custom-made tools.

Without encryption, the traffic on a WiFi network can be captured and analyzed by everyone within the range of the network. If you’re curious how far can a hacker be from your home router and still have a strong-enough signal to hack your WiFi, you can download NetSpot, an easy-to-use WiFi analysis tool. With NetSpot, you can instantly see whether your WiFi network is sufficiently encrypted to withstand a targeted attack.

Strong WiFi encryption, such as WPA2, has become an absolute necessity, but even the strongest encryption protocol can be undermined by a weak password. Yes, it can be a drag to remember a ten-digit alphanumerical string of gibberish, but the consequences of a successful WiFi hack can be devastating.

Sours: https://www.netspotapp.com/blog/wifi-security/7-ways-to-stop-a-wifi-hacker.html

If you’re trying to use the internet but you’ve got no data, then you’ll need to connect to a wireless network. However, not everyone has access to wifi at their home or when they’re out in public.

One way that you can get access to a wifi router is by hacking into it and getting its password. Doing this you can gain access to the internet, but you have to know how to do it properly. But how exactly do you do this? Well, let’s look at how it can be done.

How to Hack Wifi Passwords

If you’re trying to hack into a wifi network, then you’ll need to be able to gain access to its password. The best way for you to do this if you haven’t accessed this network before it by using a cracking software, like Cain and Abel. This can help you gain access to another wifi network by cracking their password hashes.

However, if you’ve already accessed a wifi network before, then this is going to be much easier for you. So, let’s start with how to find the password of a wifi router that you’ve already logged into before. Then, we’ll look at hacking into a router you’ve not accessed before.

How to Hack Wifi You’ve Already Signed Into

If you’ve already signed into a wifi router in the past, then this is going to make it much easier for you to hack into the network again. This is because you can see the wifi password by simply using the command function.

The first thing that you’re going to want to do is to get the wifi password from your past connections. This can allow you to log into the wifi very easily, just by entering the name or SSID of the router.

If you’re on a Mac, then you’ll want to go ahead and open Terminal. You can do this via the Finder. Then, all you’ll want to do is enter this into terminal;

Replacing the XXXXX with your Wifi name, the SSID. Then, you’ll be asked to enter your Mac’s Admin details. From the data that this brings up, you should be able to find the wifi password in there.

As you’ve probably guessed, you can also down this on a Windows device too, even Windows 10. You do need to enter something slightly different, however.

Again, you need to replace the X’s with the routers SSID. But, this is the easiest way for you to hack into a wifi connection that you’ve already have access to in the past. However, this won’t work for a router that you’ve not accessed before.

Resetting the Password

Another way that you can actually get the wifi password for a router that you’ve already signed in to is by simply resetting the password when you’re logged in. Not everyone knows this, but if you’re already logged into the wifi, then you don’t need to know the password to reset it.

It isn’t like a Netflix account, where you need to know the password in order for you to be able to reset it again. You should be able to change the username and password of your router by simply being logged in to your device.

Changing your MAC Address

If you’re just trying to get onto a local wifi network without having to put a whole lot of effort in, then you could consider changing your MAC address to do this. Your MAC address is simply the serial number of your device, and this is how a private network may be able to stop you accessing it.

The easiest way for you to change a MAC address is in Kali Linux, as you can just use macchanger, which is an easy to use command within that operating system. You can also do this pretty easily within Windows too, but you’ll need to find an app that can help you do this – personally I’d recommend checking out Technitium.

How to Hack Wifi You’ve Never Signed Into Before

Hacking into a wifi router that you’ve not had access to before is significantly more difficult, but it’s not impossible. There are a few ways you can do this. The main way that most people will trying to get into a wifi network is by cracking it.

Generally, we just used the word cracking to mean getting past or defeating the wireless networks security.

Cracking the Wifi Network

Essentially, cracking into a wifi network isn’t easy, and the best way for you to actually do this is to use a cracking software. To do this, you’ll need to follow a few steps first;

Select your Device – The first thing that you’ll obviously need to sort out is a device. Whilst you can use a mobile device to do this, it’s typically better to use a laptop or computer.

Distance – For this to work properly, you’ll need to be within a close distance of the the wifi router itself. If you’re too far away from it, then you won’t be able to access it to hack into the network.

Password – The next thing that you’re going to need to acquire is the routers password. And if it’s not listed on the side of it, then we’ll need to work out another way to get access to it.

If you’ve got everything above in order, you’ll then need to download a hacking software and follow their instructions.

There are many different cracking softwares out there that you can use, and some of them will not work (they can cause more harm to your own computer than actually help you out). Here are a few of the good ones.

Cain and Abel – For Windows

If you’re looking for a tool for Windows, then Cain and Abel is going to be one of the best softwares out there you can try. You can use it for hacking far more than a wifi password, so it definitely has the capabilities of something simple like this.

Once you’ve downloaded the software (you can find it pretty much anywhere online), you’ll need to use the cracker function of Cain to a get router password.

You’ll easily be able to see whether the password has more or less than 8 characters without even doing anything, but you’ll need to do a bit more than this to get the full password.

But overall, Cain is one of the best softwares out there for hacking a wifi password. If you’re on a Windows device, this is your best bet. You might find it online shortened to just Cain, which is just the same thing. It’s probably the best way to gain access to a wi-fi network.

Aircrack-ng – For Anything (mainly Linux)

If you’ve used Kali Linux before, then you’ll likely know what Aircrack-ng is. If you’re not sure what Kali Linux is, then essentially it’s just a distribution that runs on the Linux OS. You can easily download Linux on a Windows or Mac laptop, and if you’re interested in programming in general, then you should probably download Linux anyway.

Back to Aircrack-ng. It’s a tool we use that’s actually specifically designed for assessing wifi security, so it’s definitely up to the task. It uses a Fluhrer, Mantin and Shamir attack to try and crack the key of your password, and it’s another good way to find out what the wifi password it.

An FMS is a form of stream cipher attack, and you need to know what you’re doing to use it properly and gain access to a wi-fi network. This tool can be used for both WEP and WPA-PSK security protocols, though it uses a more standard dictionary attack for the latter.

WiFi WPS WPA Tester – For Mobile

If you’re looking to try and crack a wifi password with your mobile phone, then you’ll want to check out the WiFi WPS WPA Tester, which you can download easily in the Google Play store. It’s not as comprehensive as the previously mentioned tools as you’d expect, but it’s definitely still possible to hack a wifi password this way.

For this app to be truly useful, you’re going to need an Android phone that’s already been rooted. This way, you’ll get far more options within the app itself to try and gain access to wifi.

So, by using one of these different cracking softwares, you can then gain access to the wifi network’s password, and connect to it yourself.

Brute Force vs Dictionary Attacks

One of the most common questions around hacking is the difference between the different types of hacking out there, and whether a particular style is better for ethical hacking.

Essentially, when we’re trying to break into a wifi network, then we’re going to be using a brute force attack. This is the most common method for hacking into someones wifi, as you’ll try a number of different passwords with simple trial and error.

These types of passwords (WPA, WPA2) are a little difficult to be brute forced, because they have to be at least 8 characters long. The shorter the password, the easier it is to get into a network with wi-fi protected access.

A dictionary attack is a little different, because you actually use a known list of common words and phrases which the password could be. This list of words can make it easier and quicker to decipher exactly what the password is.

Conclusion

All in all, it isn’t easy to hack into the majority of wifi networks. Whilst it is possible, of course you should only have the utmost intentions for hacking into a wifi connection. If you get caught hacking into wifi that isn’t yours, then you could end up in trouble.

A WEP (wired equivalent privacy) security setup is the least secure, and should generally be much easier for you to access than a WPA setup. Though if you download the correct software, you should be able to hack into a variety of different wireless networks.

About Jon

Hey, I'm Jon. I'm an engineer by trade, so it makes sense that I'm obsessed with anything technology related! On the weekends, you can find me playing around with my computers or fixing something around the house. Feel free to leave a comment if you want to get in touch.

...

Sours: https://spacehop.com/how-to-hack-wifi-passwords/
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How to Hack-Proof Your Wireless Router

Your wireless router is a prime target for hackers who want to infiltrate your network or freeload off of your Wi-Fi connection. Just like nothing is completely waterproof, there's no such thing as hack-proof or hacker-proof. But you can make systems that are "hacker-resistant," and in this article, we'll show you how.

Enable WPA2 or WPA3 Wireless Encryption

If you aren't using a minimum of Wi-Fi Protected Access 2 (WPA2) encryption to protect your wireless network, this leaves your network wide open because hackers can virtually walk into your network.

If you use outdated Wired Equivalent Privacy (WEP) security, which can be cracked in seconds by most hackers, upgrade to WPA2 or preferably WPA3, which is backward compatible with WPA2. Older routers may need a firmware upgrade to add WPA2 or WPA3 functionality. Check your router manufacturer's manual to learn how to enable WPA2\WPA3 wireless encryption on your router.

Create a Strong SSID Network Name and Pre-Shared Key

You will also need to make a strong SSID (wireless network name). If you use the router's default network name (for example, Linksys, Netgear, or DLINK), then you make it easier for hackers to hack your network. Using a default SSID or a common one helps hackers crack your encryption because they can use prebuilt rainbow tables associated with common SSID names to crack your wireless encryption.

Create a lengthy and random SSID name even though it might be hard to remember. You should also use a strong password for your pre-shared key to further discourage hacking attempts.

Turn on Your Wireless Router's Firewall

If you haven't done so, enable your wireless router's built-in firewall. Enabling the firewall can make your network less visible to hackers looking for targets on the internet. Many router-based firewalls have a stealth mode that you can enable to reduce your network's visibility. Also, test your firewall to ensure that you have configured it correctly.

Use an Encrypted Personal VPN Service at the Router Level

Virtual private networks used to be a luxury that only large corporations could afford. Now you can buy a personal VPN service for a small monthly fee. A personal VPN is one of the biggest roadblocks you can throw at a hacker.

A personal VPN anonymizes your true location with a proxied IP address and puts up a wall of strong encryption to protect your network traffic. You can purchase a personal VPN service from vendors such as WiTopia, StrongVPN, and others for as little as $10 a month or less.

If your router supports personal VPN service at the router level, this is the best way to implement a personal VPN. It allows you to encrypt all traffic entering and leaving your network without the hassle of setting up VPN client software on your computers.

Using a personal VPN service at the router level also takes the encryption process burden off of your client PCs and other devices. If you want to use a personal VPN at the router level, check to see if your router is VPN-capable. Many manufacturers have several models of routers with this capability.

Disable the Admin via Wireless Feature on Your Router

Another way to prevent hackers from messing with your wireless router is to disable the admin via wireless setting. When you disable the admin via wireless feature on your router, it makes it so that only someone who is physically connected to your router with an Ethernet cable can access the admin features of your wireless router. This prevents someone from driving by your house and accessing the administrative functions of your router if they compromised your Wi-Fi encryption.

Given enough time and resources, a hacker might be able to hack into your network. However, taking the steps above will make your network a harder target, hopefully frustrating hackers and causing them to move on to an easier target.

How to Hide Your Modem and Router

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Sours: https://www.lifewire.com/how-to-hack-proof-your-wireless-router-2487654
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Wireless networks are accessible to anyone within the router’s transmission radius. This makes them vulnerable to attacks. Hotspots are available in public places such as airports, restaurants, parks, etc.

In this tutorial, we will introduce you to common techniques used to exploit weaknesses in wireless network security implementations. We will also look at some of the countermeasures you can put in place to protect against such attacks.

Topics covered in this How to Hack WiFi Tutorial

What is a wireless network?

A wireless network is a network that uses radio waves to link computers and other devices together. The implementation is done at the Layer 1 (physical layer) of the OSI model.

How to hack wireless networks

How to access a wireless network?

You will need a wireless network enabled device such as a laptop, tablet, smartphones, etc. You will also need to be within the transmission radius of a wireless network access point. Most devices (if the wireless network option is turned on) will provide you with a list of available networks. If the network is not password protected, then you just have to click on connect. If it is password protected, then you will need the password to gain access.

Wireless Network Authentication

Since the network is easily accessible to everyone with a wireless network enabled device, most networks are password protected. Let’s look at some of the most commonly used authentication techniques.

WEP

WEP is the acronym for Wired Equivalent Privacy. It was developed for IEEE 802.11 WLAN standards. Its goal was to provide the privacy equivalent to that provided by wired networks. WEP works by encrypting the data been transmitted over the network to keep it safe from eavesdropping.

WEP Authentication

Open System Authentication (OSA) – this methods grants access to station authentication requested based on the configured access policy.

Shared Key Authentication (SKA) – This method sends to an encrypted challenge to the station requesting access. The station encrypts the challenge with its key then responds. If the encrypted challenge matches the AP value, then access is granted.

WEP Weakness

WEP has significant design flaws and vulnerabilities.

  • The integrity of the packets is checked using Cyclic Redundancy Check (CRC32). CRC32 integrity check can be compromised by capturing at least two packets. The bits in the encrypted stream and the checksum can be modified by the attacker so that the packet is accepted by the authentication system. This leads to unauthorized access to the network.
  • WEP uses the RC4 encryption algorithm to create stream ciphers. The stream cipher input is made up of an initial value (IV) and a secret key. The length of the initial value (IV) is 24 bits long while the secret key can either be 40 bits or 104 bits long. The total length of both the initial value and secret can either be 64 bits or 128 bits long.The lower possible value of the secret key makes it easy to crack it.
  • Weak Initial values combinations do not encrypt sufficiently. This makes them vulnerable to attacks.
  • WEP is based on passwords; this makes it vulnerable to dictionary attacks.
  • Keys management is poorly implemented. Changing keys especially on large networks is challenging. WEP does not provide a centralized key management system.
  • The Initial values can be reused

Because of these security flaws, WEP has been deprecated in favor of WPA

WPA

WPA is the acronym for Wi-Fi Protected Access. It is a security protocol developed by the Wi-Fi Alliance in response to the weaknesses found in WEP. It is used to encrypt data on 802.11 WLANs. It uses higher Initial Values 48 bits instead of the 24 bits that WEP uses. It uses temporal keys to encrypt packets.

WPA Weaknesses

  • The collision avoidance implementation can be broken
  • It is vulnerable to denial of service attacks
  • Pre-shares keys use passphrases. Weak passphrases are vulnerable to dictionary attacks.

How to Crack WiFI (Wireless) Networks

WEP cracking

Cracking is the process of exploiting security weaknesses in wireless networks and gaining unauthorized access. WEP cracking refers to exploits on networks that use WEP to implement security controls. There are basically two types of cracks namely;

  • Passive cracking– this type of cracking has no effect on the network traffic until the WEP security has been cracked. It is difficult to detect.
  • Active cracking– this type of attack has an increased load effect on the network traffic. It is easy to detect compared to passive cracking. It is more effective compared to passive cracking.

WEP Cracking (Hacking) Tools

  • Aircrack– network sniffer and WEP cracker. This WiFi password hacker tool can be downloaded from http://www.aircrack-ng.org/
  • WEPCrack– this is an open source Wi-Fi hacker program for breaking 802.11 WEP secret keys. This WiFi hacker app for PC is an implementation of the FMS attack. http://wepcrack.sourceforge.net/
  • Kismet– this WiFi password hacker online detects wireless networks both visible and hidden, sniffer packets and detect intrusions. https://www.kismetwireless.net/
  • WebDecrypt– this WiFi password hack tool uses active dictionary attacks to crack the WEP keys. It has its own key generator and implements packet filters for hacking WiFi password. http://wepdecrypt.sourceforge.net/

WPA Cracking

WPA uses a 256 pre-shared key or passphrase for authentications. Short passphrases are vulnerable to dictionary attacks and other attacks that can be used to crack passwords. The following WiFi hacker online tools can be used to crack WPA keys.

General Attack types

  • Sniffing– this involves intercepting packets as they are transmitted over a network. The captured data can then be decoded using tools such as Cain & Abel.
  • Man in the Middle (MITM) Attack– this involves eavesdropping on a network and capturing sensitive information.
  • Denial of Service Attack– the main intent of this attack is to deny legitimate users network resources. FataJack can be used to perform this type of attack. More on this in article

Cracking Wireless network WEP/WPA keys

It is possible to crack the WEP/WPA keys used to gain access to a wireless network. Doing so requires software and hardware resources, and patience. The success of such WiFi password hacking attacks can also depend on how active and inactive the users of the target network are.

We will provide you with basic information that can help you get started. Backtrack is a Linux-based security operating system. It is developed on top of Ubuntu. Backtrack comes with a number of security tools. Backtrack can be used to gather information, assess vulnerabilities and perform exploits among other things.

Some of the popular tools that backtrack has includes;

  • Metasploit
  • Wireshark
  • Aircrack-ng
  • NMap
  • Ophcrack

Cracking wireless network keys requires patience and resources mentioned above. At a minimum, you will need the following tools

A wireless network adapter with the capability to inject packets (Hardware)

  • Kali Operating System. You can download it from here https://www.kali.org/downloads/
  • Be within the target network’s radius. If the users of the target network are actively using and connecting to it, then your chances of cracking it will be significantly improved.
  • Sufficient knowledge of Linux based operating systems and working knowledge of Aircrack and its various scripts.
  • Patience, cracking the keys may take a bit of sometime depending on a number of factors some of which may be beyond your control. Factors beyond your control include users of the target network using it actively as you sniff data packets.

How to Secure wireless networks

In minimizing wireless network attacks; an organization can adopt the following policies

  • Changing default passwords that come with the hardware
  • Enabling the authentication mechanism
  • Access to the network can be restricted by allowing only registered MAC addresses.
  • Use of strong WEP and WPA-PSK keys, a combination of symbols, number and characters reduce the chance of the keys been cracking using dictionary and brute force attacks.
  • Firewall Software can also help reduce unauthorized access.

How to Hack WiFi Password

In this practical scenario, we are going to learn how to crack WiFi password. We will use Cain and Abel to decode the stored wireless network passwords in Windows. We will also provide useful information that can be used to crack the WEP and WPA keys of wireless networks.

Decoding Wireless network passwords stored in Windows

Step 1) Download the Cain and Abel tool

  • Download Cain & Abel from the link provided above.
  • Open Cain and Abel

How to hack wireless networks

Step 2) Select the Decoders tab and choose Wireless passwords

  • Ensure that the Decoders tab is selected then click on Wireless Passwords from the navigation menu on the left-hand side
  • Click on the button with a plus sign

How to hack wireless networks

Step 3) The passwords will be shown

  • Assuming you have connected to a secured wireless network before, you will get results similar to the ones shown below

How to hack wireless networks

Step 4) Get the passwords along with encryption type and SSID

  • The decoder will show you the encryption type, SSID and the password that was used.

Summary

  • Wireless network transmission waves can be seen by outsiders, this possesses many security risks.
  • WEP is the acronym for Wired Equivalent Privacy. It has security flaws which make it easier to break compared to other security implementations.
  • WPA is the acronym for Wi-Fi Protected Access. It has security compared to WEP
  • Intrusion Detection Systems can help detect unauthorized access
  • A good security policy can help protect a network.
Sours: https://www.guru99.com/how-to-hack-wireless-networks.html

Hijack wifi

Can my home Wi‑Fi be hacked?

What makes a Wi‑Fi router secure?

If you’re worried about the security of your home net­work, we highly recommend you put some consideration into which router you purchase. Routers that come bundled with your internet connection or the most popular routers on sites like Amazon are also the ones that are most often hacked, because their popularity makes them an obvious target. Router vulnerabilities are much more likely to be discovered in devices that sit at the top of best­seller lists because hackers can target many people through them.

Can a Wi‑Fi router be hacked?

It’s entirely possible that your router might have been hacked and you don’t even know it. By using a technique called DNS (Domain Name Server) hijacking, hackers can breach the security of your home Wi‑Fi and potentially cause you a great deal of harm. They can redirect your traffic to a web­site run by them, causing you to unwittingly give your credit card number or Facebook login credentials to a criminal. Thank­fully, you can check if your home net­­work is secure by using a free and web-based online router checker service. Make sure you choose the service from a trustful and reputable cyber security brand.

Should I change my Wi‑Fi router password?

You might be surprised how easy it is to hack into your home Wi‑Fi net­work nowadays. For very little money, a hacker can rent a cloud computer and most often guess your net­work’s pass­word in minutes by brute force or using the powerful computer to try many combinations of your pass­word. Your home Wi‑Fi net­work can easily be broken into if you have a weak password.

Do I need internet security with a pass­word-protected router?

The most important connected devices in our homes will always be our computers and phones, and a weak router can also lead to them being hacked and infected. By using internet security with world class protection, you can protect your computers and mobile devices from viruses and other threats.

Sours: https://www.f-secure.com/us-en/home/articles/can-my-home-wi-fi-be-hacked
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