How to improve Wi-Fi security & avoid protect from hackers
Wi-Fi security hack. The Wi-Fi security hack is one of the popular searches from all over the world. People search wifi / wi-fi security hack.They are keen to get the free access and get Wi-Fi security hack at any cost. The Wi-Fi networks are getting more and more users. Broadband networks in every home use Wi-Fi routers
Wi-Fi Security Hack
The Wireless networks are accessible to anyone within the router’s transmission range. This makes them vulnerable to attacks. You can not make your router transmitting the rays only to you and not to anybody else. This makes the Wi fi more prone to security attacks.
What Is WiFi – Important To Know
A wireless network uses radio waves, just like cell phones, televisions and radios do. In fact, communication across a wireless network is a lot like two-way radio communication. Here’s what happens:
- A computer’s wireless adapter translates data into a radio signal and transmits it using an antenna.
- A wireless router receives the signal and decodes it. The router sends the information to the Internet using a physical, wired Ethernet connection.
The process also works in reverse, with the router receiving information from the Internet, translating it into a radio signal and sending it to the computer’s wireless adapter.
Wi-Fi Properties that make it vulnerable to Hacking
- The Wi-Fi transmit at frequencies of 2.4 GHz or 5 GHz. This frequency is considerably higher than the frequencies used for cell phones, walkie-talkies and televisions. The higher frequency allows the signal to carry more data.
- It uses 802.11 networking standards, which come in several flavors :
- 802.11a transmits at 5 GHz and can move up to 54 megabits of data per second. It also uses orthogonal frequency-division multiplexing (OFDM), a more efficient coding technique that splits that radio signal into several sub-signals before they reach a receiver. This greatly reduces interference.
- 802.11b is the slowest and least expensive standard. For a while, its cost made it popular, but now it’s becoming less common as faster standards become less expensive. 802.11b transmits in the 2.4 GHz frequency band of the radio spectrum. It can handle up to 11 megabits of data per second, and it uses complementary code keying (CCK) modulation to improve speeds.
- 802.11g transmits at 2.4 GHz like 802.11b, but it’s a lot faster — it can handle up to 54 megabits of data per second. 802.11g is faster because it uses the same OFDM coding as 802.11a.
- 802.11n is the most widely available of the standards and is backward compatible with a, b and g. It significantly improved speed and range over its predecessors. For instance, although 802.11g theoretically moves 54 megabits of data per second, it only achieves real-world speeds of about 24 megabits of data per second because of network congestion. 802.11n, however, reportedly can achieve speeds as high as 140 megabits per second. 802.11n can transmit up to four streams of data, each at a maximum of 150 megabits per second, but most routers only allow for two or three streams.
- 802.11ac is the newest standard as of early 2013. It has yet to be widely adopted, and is still in draft form at the Institute of Electrical and Electronics Engineers (IEEE), but devices that support it are already on the market. 802.11ac is backward compatible with 802.11n (and therefore the others, too), with n on the 2.4 GHz band and ac on the 5 GHz band. It is less prone to interference and far faster than its predecessors, pushing a maximum of 450 megabits per second on a single stream, although real-world speeds may be lower. Like 802.11n, it allows for transmission on multiple spatial streams — up to eight, optionally. It is sometimes called 5G WiFi because of its frequency band, sometimes Gigabit WiFi because of its potential to exceed a gigabit per second on multiple streams and sometimes Very High Throughput (VHT) for the same reason.
What hackers target
- WiFi radios can transmit on any of three frequency bands. Or, they can “frequency hop” rapidly between the different bands. Frequency hopping helps reduce interference and lets multiple devices use the same wireless connection simultaneously.
Types of Wi-Fi Security Mechanisms that Lead to Wi-Fi Security hack
Since the network is easily accessible to everyone with a wireless network enabled device, most networks have the password mechanism. Here are popular security ways –
WEP
WEP is Wired Equivalent Privacy. It uses IEEE 802.11 WLAN standards. WEP works by encrypting the data over the wireless transmission.
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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 it gets the access.
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WPA
WPA is the acronym for Wi-Fi Protected Access. It is a security protocol by the Wi-Fi Alliance in response to the weaknesses found in WEP. It uses higher Initial Values 48 bits (WEP uses 24 bits)
Wi-Fi Security hack – WEP cracking
You can get the Wi-Fi Security hack with 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;
- 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 than passive cracking.
- 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.
WEP Cracking Tools
- Aircrack– It is a network sniffer and WEP cracker. You can download it from – http://www.aircrack-ng.org/
- WEPCrack– It is an open source program for breaking 802.11 WEP secret keys. You can get it at. http://wepcrack.sourceforge.net/
- Kismet-Another popular tool that will let you crack the WEP keys. Many hackers use this since long time and will be continuing with it. You can get kismet from – http://www.kismetwireless.net/
- WebDecrypt – WebDecrypt uses database to get the hack. Database has a bigger set of passwords This tool uses active dictionary attacks to crack the WEP keys. It has its own key generator and implements packet filters. Get it from – http://wepdecrypt.sourceforge.net/
WPA Cracking
WPA uses a 256 pre-shared key or passphrase for authentications. Short passphrases are vulnerable to dictionary attacks. The following tools can be used to crack WPA keys.
- CowPatty– It helps to crack PSK with its easy implementation. Get the hack from – http://wirelessdefence.org/Contents/coWPAttyMain.htm
- Cain & Abel– This tool can be used to decode capture files from other sniffing programs such as Wireshark. Get the tool from – http://www.softpedia.com/get/Security/Decrypting-Decoding/Cain-and-Abel.shtml
Secure your Wi-Fi Network
- OPEN YOUR ROUTER SETTINGS PAGE
- CREATE A UNIQUE PASSWORD ON YOUR ROUTER
- CHANGE YOUR NETWORK’S SSID NAME
- ENABLE NETWORK ENCRYPTION
- FILTER MAC ADDRESSES
- REDUCE THE RANGE OF THE WIRELESS SIGNAL
- UPGRADE YOUR ROUTER’S FIRMWARE
I will be sharing details to make your wi-fi network more secure. This will let you know the details as well as protect your wifi too. Till then enjoy the guide.
