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7:24 AM
Don't Forget One Day You Will Be In The Past
Like many of your loyal readers, I frequently use public Wi-Fi places like coffee shops. I would appreciate some tips on how to improve my computer's security under this circumstance.
Dr David Null
Wi-Fi hotspots are often unprotected and unencrypted, with users doing their email and surfing the web in plain text. Anyone nearby can pick up the same radio signals and read them. Often this doesn't matter, but in general, it's best to avoid using public networks for banking and shopping. Note that sharing a public network can also provide access to your PC, so you must run a firewall and perhaps disable file and printer sharing in Windows. In Windows 7 and Vista, you can choose the park bench icon for an untrusted Public Network and not a Home or Work network. Microsoft has an advice page, 7 tips for working securely from wireless hotspots, with other details.
Some web pages, such as log-on pages, need better security, and these often use SSL (Secure Sockets Layer) connections. You can tell when you're using SSL because the page address starts with https:// instead of http://, and the browser will show a lock icon in the bottom right-hand corner. However, some sites that use SSL to protect log-in details then switch to plain text for normal surfing.
