Wi-Fi (or WiFi) is a local area wireless computer networking technology that allows electronic devices to network, mainly using the 2.4 gigahertz (12 cm) UHF and 5 gigahertz (6 cm) SHF ISM radio bands. The Wi-Fi Alliance defines Wi-Fi as any „wireless local area network” (WLAN) product based on the Institute of Electrical and Electronics Engineers’ (IEEE) 802.11 standards”. However, the term „Wi-Fi” is used in general English as a synonym for „WLAN” since most modern WLANs are based on these standards. „Wi-Fi” is a trademark of the Wi-Fi Alliance. The „Wi-Fi CERTIFIED” trademark can only be used by Wi-Fi products that successfully complete Wi-Fi Alliance interoperability certification testing. Many devices can use Wi-Fi, e.g. personal computers, video-game consoles, smartphones, digital cameras, tablet computers and digital audio players. These can connect to a network resource such as the Internet via a wireless network access point. Such an access point (or hotspot) has a range of about 20 meters (66 feet) indoors and a greater range outdoors. Hotspot coverage can be as small as a single room with walls that block radio waves, or as large as many square kilometres achieved by using multiple overlapping access points. Depiction of a device sending information wirelessly to another device, both connected to the local network, in order to print a document. Wi-Fi can be less secure than wired connections, such as Ethernet, precisely because an intruder does not need a physical connection. Web pages that use TLS are secure, but unencrypted internet access can easily be detected by intruders. Because of this, Wi-Fi has adopted various encryption technologies. The early encryption WEP proved easy to break. Higher quality protocols (WPA, WPA2) were added later. An optional feature added in 2007, called Wi-Fi Protected Setup (WPS), had a serious flaw that allowed an attacker to recover the router’s password. The Wi-Fi Alliance has since updated its test plan and certification program to ensure all newly certified devices resist attacks .

Supprimer le WIFI d’une télévision Samsung


Ayant une télévision Samsung, vu qu’Apple ne fait pas encore de télévision, je cherchais un moyen de supprimer le WIFI sur cette Samsung Smart TV.

Il existe une façon simple qui permet de supprimer le WIFI d’une télévision Samsung.

Comment faire :


WiFiKeychainProxy(8) / BSD System Manager’s Manual / WiFiKeychainProxy(8)   NAME WiFiKeychainProxy — XPC helper tool for accessing WiFi keychain items SYNOPSIS WiFiKeychainProxy DESCRIPTION WiFiKeychainProxy XPC XPC helper tool for accessing WiFi keychain items SYSTEM AGENT com.apple.wifi.WiFiKeychainProxy