Using a public wireless Internet connection is risky business and there is plenty of incentive for both the curiously bored and criminals to take advantage.  Encryption is the safety net and using file sharing on the computer is like adding a running faucet.   Using public Wi-Fi is something to avoid, whenever possible, unless you have a top notch IT person configuring the laptop.  If you must connect to a public Wi-Fi connection the rules of thumb to live by are:

  • Consider keeping files on a USB device and removing it while using a public Wi-Fi.  Complete a full scan of the computer prior to connecting the USB drive to protect against Malware.
  • Or, place all files in an encrpyted Folder either by using Window’s encryption, typically, accessed by a RIGHT-CLICK on the Folder, LEFT-CLICK on Properties and LEFT-CLICK on the Advanced button.  Only the USER ACCOUNT used to encrpyt can access the files in the encrypted folder.  [Another option is to use a free utility such as 7-Zip [More users will want to use the top download link]which allows more fexibility on moving files between computers.]
  • Turn off file sharing of any kind on the computer.  Open an Explore window, RIGHT-CLICK on the installed Hard-Drive(s), LEFT-CLICK Properties and LEFT-CLICK on the Sharing tab.  Disable File Sharing if it is enabled.
  • Open Network Connections; for Vista: type Network Connections and select; or with XP: access via the Control Panel.  RIGHT-CLICK on any listed Network connections and LEFT-CLICK Properties.  Consider using tighter security settings that require a secure password and encrypted connection.  Check the Networking Settings and make sure File and Printer Sharing is not enabled or checked, and make sure you have a solid FIREWALL protecting the computer.  A 3rd Party Firewall is recommended.  [The Software Section of the Web Site has a list of the top performers that are free for home use.]
  • Avoid using Web Sites requiring personal information and passwords but if it is a must, only use secure connections that begin with HTTPS, S for secure, and show a locked symbol.
  • Be extremely careful about the Wi-Fi service to avoid connecting to a spoof Wi-Fi set up by a hacker.
  • And assume that all emails sent and received can be read!

Be safe.