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Originally Posted by Ann Omness
Most wireless networks can be encrypted. I've got mine set up that way on general principle.
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But the encryption is often poor and many don't use proper key exchange, which makes it very easy to read. Encrypted or not it's not that hard to connect to most wireless networks and once someone is connected to your internal network it doesn't take long to install new stuff.
Of course I used to put a sniffer on my cable connection and see everything the neighbors were doing. Most IT professionals think that a firewall offers some protection against that but they're clueless
