People who do not encrypt their home wireless Internet and businesses that do not make sure their systems are secure are both in danger of allowing a hacker to access the network.
Make sure you encrypt it and/or secure it with a password.
In addition, as proxies are able to encrypt data as well, the monitoring proxies will only collect gibberish.
The PHP string functions are also commonly used to encrypt strings.
IBM has recently added an embedded security chip that allows you to encrypt the security keys of a wireless network.