Protect your Wireless Internet Network
1) Encrypt your Wi-Fi Network: When you use a Wi-Fi network for accessing the internet, every piece of data you send and receive over the air can be easily snooped by anyone with the right set of tools. Packet sniffers can be used by even the most novice of users to sniff your data. This means that a hacker can not only see which websites are you accessing but also get the login details of your personal and professional accounts.Encryption basically involves scrambling the data that is transmitted and received by you while using a wireless network. This means that even if a hacker intercepts your data transmission, (s)he will not be able to exploit the information contained within it.
There are two encryption standards available that you can use: WEP (Wired Equivalent Privacy) and WPA (Wireless Protected Access). WEP is the older standard of encryption and can now be bypassed in a matter of minutes. WPA is relatively newer but it still has security holes. AirCrack and coWPAtty are two free tools that allow anyone to easily crack WEP and WPA encryption using bruteforce technique. WPA2 is the latest standard and is what you must use if you want the highest level of protection for your wireless network. The encryption keys used change each time a device accesses the network making WPA more difficult to hack.
The encryption used by all devices in the network must be the same for the network to work properly. Your network will only be as secure as its least secure device. Make sure all devices you use support WPA2 encryption. Use a strong encryption key. Make sure that it is longer than 10 characters and contains a mixture of capital and small letters, numbers and symbols. Do not use common words and stuff that people can guess about you as your password.
2) Replace default passwords on your router with strong passwords: The biggest mistake most wireless internet users make is not changing default passwords on their routers. Hackers utilize public databases that contain default passwords and usernames from virtually every manufacturer. This enables them to change the security settings of your router according to their needs. Using a strong password for your router ensures that hackers and miscreants cannot change your network's security settings. To change the password on your router, visit Administration settings on your router's settings page. Also, do not store passwords in browsers as they can be easily made visible.
3) Change default SSID
Your network's SSID or Service Set Identifier is the name of your wireless network. Usually, the SSID is the name of the router's manufacturer along with the model number of the router. Changing it to not display this information prevents you from giving additional information about your router to prospective hackers.
4) Do not broadcast your SSID
Hiding SSID prevents unsophisticated and inexperienced hackers and wifi intruders from determining that your network exists. Hiding your SSID is relatively easy and the option to do so is usually under basic wireless settings on your router's settings page. However, it is important to note that some devices, including those running newer versions of Windows, will show every network even if they cannot identify its name. Moreover, your network will still contain the SSID in data packets making unmasking ridiculously easy with tools like Kismet and Commview for WiFi.
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