Stay safe when you're using public Wi-Fi. Jim Hamm points out several important precautions to take.
1. Don't make online purchases or access your bank account.
2. Switch your passwords. Use a different password for each of your online accounts.
3. Look for the locked padlock in the address bar. That means the info submitted to that site is encrypted. But still be cautious.
4. Turn off file sharing on your computer.