What is Wi-Fi?
Wi-Fi is a game on Hi-Fi (High Fidelity) that is the quality of sound. Although it is not a direct word game (all wireless is purely wireless or wired, there is no wireless quality), it is wireless and uses radio frequency ( RF) instead of wires (copper) or optical fiber (light). The international organization, the Institute of Electrical and Electronics Engineers (IEEE, commonly known as I-Triple E), maintains this standard alongside many others on various standards committees. The LAN / MAN (802) standardization committee oversees this task and a few others, including Ethernet, Token Ring, and Bluetooth. In the 802.11 standard, the IEEE WLAN Working Group, new standards have emerged over time as a result of advances in the availability of RF data delivery. Technically, 802.11a is completely different from 802.11g in terms of standards, these are interoperable standards. 802.11g was a revision and consolidation of the 802.11a and 802.11b standards. This was replaced by 802.11n and later 802.11ac.
Measures to prevent technology-related crime
Every Wi-Fi user needs to know how to adopt security measures that will prevent them from becoming victims of wireless-related offenses.
Bandwidth theft, exposed e-mails, theft of passwords or usernames, and online identity theft are some of the major issues with unsecured Wi-Fi transmissions. Every Wi-Fi user needs to know how to secure their computer
Use WPA instead of WEP encryption
Encryption protocols help to further secure network traffic by encoding the data packets that are transmitted. Unfortunately, some wireless routers are not encrypted and do not use the lower Wired Equivalency Privacy (WEP) security protocol.
It is well known that WEP security keys are easy to decrypt and, therefore, network administrators must use WPA or WPA2. Even if a router does not support the more secure WPA or WPA2 protocols, you must use WEP. it's better than nothing.
Install a firewall on each computer and server
A firewall is the most fundamental network security measure for protecting wireless networks. Although Wi-Fi routers can be used to extend the range of networks, they also make the network more vulnerable. A firewall must be installed on each computer to guard against security threats. This should be done even if a firewall is installed on the wireless router.
Use a virtual private network (VPN)
Basically, VPNs form a private network that uses a public network (usually the Internet) to connect together remote sites or users. VPNs use authenticated links to ensure that only authorized users can connect to a network. It also uses encryption to ensure that other users can not intercept or use data that travels over the Internet. Many websites offer free and paid VPN versions. VPNbase is one of them.
Reduce the transmit power of network access points
One of the benefits of using wireless networks is the ability to access services remotely. This force also becomes a weakness, because others can see and possibly use the network, especially when a strong transmitter / antenna is used.
To limit the distance the wireless signal travels out of the premises, reduce the output power of the wireless antennas. This requires some adjustments to find the right setting, since reducing the output signal from the antennas also reduces service provision and network quality.
Disable remote administration
WLAN routers often allow a network administrator to configure the router remotely. By default, this feature is usually disabled and should remain as is if remote administration is not absolutely necessary. While network administrators can usually set passwords, to secure access to the router's control panel, leaving the feature enabled might also make the network vulnerable.
Remove or disable weak passwords and access codes
Make sure that all default passwords and access codes provided with network devices are predefined or changed. Access the router's web interface and update all settings related to network security. Also make sure that you use strong passwords.
Physically secure your wireless network equipment
Hardware devices typically include a hard reset button. Making network equipment easily accessible and physically manipulated by those who want it puts the network at risk.
Do not broadcast the SSID of the network
To allow easy configuration of wireless clients, most wireless access points will broadcast the Service Set IDentifier (SSID) or network name. SSID broadcast makes it easy to configure wireless clients, but also makes WLANs visible to wireless devices within range, including those that are malicious. Disable SSID broadcast to make the network invisible and more secure.
Simple wireless network security
Ensuring that a wireless network is secure is a permanent responsibility. Wireless network threats, such as those posed by hackers and viruses, can be thwarted by common-sense approaches such as the physical security of network devices and the use of strong encryption methods and technologies. However, the most effective security measures are those that seek to cover all known security vulnerabilities.