Thank you ever so much Lee, much better use of your time. John
Sent from my iPhone > On May 14, 2017, at 11:46 AM, Lee Larson <leelar...@me.com> wrote: > > This morning, for the first time this year, I brought all my junk out to the > deck in the back yard with the idea of getting some work done. Instead, I > ended up dissecting the WiFi landscape in the neighborhood. > > There’s a nice piece of free software called WiFi Scanner. (It’s in the App > Store.) It will look for all the WiFi it can find and display lots of > information about the source. It’s running on my MacBook Pro and is > refreshing the scan every five seconds. > > I am amazed that in this suburban neighborhood, where the houses certainly > aren’t packed together, I can see about 30 WiFi sources. Some of them aren’t > very strong, so the number jumps up and down as sources drop in and out. It’s > been as high as 37 at times. > > Oh… my… security… > > There are seven routers with completely open access. I joined three of them > and was able to see the devices in the homes where they live. I’m tempted to > send a short warning about security to their printers. > > Three more have passwords using only WEP encryption. WEP was never a very > secure acronym to hide behind, and it can be broken in a few seconds by > anyone. > > Four more are protected by WPA, which is better, but can still be cracked > with some effort. > > The rest have WPA2, which is a lot better. (WPA2+AES is the choice everyone > should use.) > > L^2 > > > > > > --- > Lee Larson leelar...@me.com (502)741–0370 > > Somehow it's O.K. for people to chuckle about not being good at math. Yet if > I said, 'I never learned to read,' they'd say I was an illiterate dolt. — > Neil deGrasse Tyson > > > > > > > > > _______________________________________________ > MacGroup mailing list > Posting address: MacGroup@erdos.math.louisville.edu > Archive: <http://www.mail-archive.com/macgroup@erdos.math.louisville.edu/> > Answers to questions: <http://erdos.math.louisville.edu/macgroup/>
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