Automatic Wireless Network Setup - Samsung UE50ES6300U E-Manual

Most wireless networks have an
optional security system that requires
devices that access the network to
transmit an encrypted security code
called an Access or Security Key. The
Security Key is based on a Pass Phrase,
typically a word or a series of letters
and numbers of a specified length
you were asked to enter when you set
up wireless security for your wireless
network.