In IP Addresses and Security, I wrote about how the Internet works — your computer has an IP address, your intended destination has an IP address, and both have to know and use the IP address of the other in order for communication to occur between them.

The article was in response to a reader who wrote to ask if he could keep his IP address secret, since he had been accused of copyright infringment by downloading a movie (which he says he didn’t do).

One of the potential issues was that his IP address could have been involved, even without him or anyone in his family being involved.

He uses a wireless router, as many of us do. He mentioned that he had a wireless password that had to be used in order to access his router. This kind of password is not a log-in password to the router — it is a password to the router’s encryption. Over the years, though, password security has gotten better and better. Unfortunately, some of the older encryption methods have become almost trivial for someone to crack with today’s fast computers.

However, even using the best wireless encryption available isn’t enough. There are other steps necessary to secure a wireless network.

Continue reading Wireless Security Issues