1. If your phone offers encryption, enable it. Learn how to at http://help.unc.edu/help/encrypting-cell-phones.
2. Use security software. Check your carrier or phone manufactures for recommendations or free companies such as AVG, Avast and Lookout Mobile Security.
3. When using your smartphone to shop, use retailers' dedicated apps rather than your phone's browser.
4. Before installing apps, read their reviews and stick with trusted vendors such as Google or Apple.
5. Think twice about pubic Wi-Fi networks. You're more secure using the provider's network.
6. Don't auto-save your user name and passwords on apps or when using your smartphone to make financial transactions.
7. Regularly clear the browser history to prevent smartphone thieves from retracing your steps to hijack accounts.
8. Get an app that will track and report the location of your phone if you misplace it.
9. Ask your wireless carrier how to remotely erase stored data if your phone is lost or stolen.
10. Don't click on links in text messages or smartphone emails from strangers or even friends if the content doesn't appear to be recognizable.
11. Consider carrying a low-cost "dumb" phone to use when talking in public place.
12. Always lock your phone with a PIN.