If router security is not activated or if the owner deactivates it for convenience, it creates a free hotspot.Since most 21st-century laptop PCs have wireless networking built in (see Intel "Centrino" technology), they don't need a third-party adapter such as a PCMCIA Card or USB dongle.The variety of risks to users of wireless technology have increased as the service has become more popular and the technology more commonly available.Today there are a great number of security risks associated with the current wireless protocols and encryption methods, as carelessness and ignorance exists at the user and corporate IT level.Many laptop computers have wireless cards pre-installed.The ability to enter a network while mobile has great benefits.However, lack of knowledge among users about the security issues inherent in setting up such systems often may allow others nearby access to the connection.
However, there are effective countermeasures (like disabling open switchports during switch configuration and VLAN configuration to limit network access) that are available to protect both the network and the information it contains, but such countermeasures must be applied uniformly to all network devices.Built-in wireless networking might be enabled by default, without the owner realizing it, thus broadcasting the laptop's accessibility to any computer nearby.Modern operating systems such as Linux, mac OS, or Microsoft Windows make it fairly easy to set up a PC as a wireless LAN "base station" using Internet Connection Sharing, thus allowing all the PCs in the home to access the Internet through the "base" PC.The most common types of wireless security are Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). The password it uses can often be cracked in a few minutes with a basic laptop computer and widely available software tools.WEP is an old IEEE 802.11 standard from 1999, which was outdated in 2003 by WPA, or Wi-Fi Protected Access. I'm having a problem my laptop was banned from accessing the Internet but I could connect to the wireless network and share files with the other computer in the network but it is reporting me that the router is blocking off the traffic from the Internet.Wireless security is the prevention of unauthorized access or damage to computers using wireless networks.Evaluation of these vulnerabilities and the resulting vulnerability catalogs in an industrial context when considering WLAN, NFC and Zig Bee are available.Wireless networks are very common, both for organizations and individuals.Due to its availability and low cost, the use of wireless communication technologies increases in domains beyond the originally intended usage areas, e.g. Such industrial applications often have specific security requirements.Hence, it is important to understand the characteristics of such applications and evaluate the vulnerabilities bearing the highest risk in this context.