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The cloud is a shared network, the same as any shared network so it has many access points. The entire network has to be encrypted so regular people can not just enter and do whatever they want to all the data. The network is encrypted heavily enough that a normal processor could not decipher it, so authentication is needed to allow a person to enter the network. When it comes to public sites, such as Google, they require a username and password to be created. Companies will want more security so they allow a select few access to the network or even just certain parts of the network. A username and password would be provided to an employee and the network manager will have pre-authorized that person to do certain things in the network (Toigo, 2009).