2. Turn on the trusty Erase Data feature

After you’ve set your passcode, go to Settings -> Password -> Passcode Lock and switch the Erase Data slider to ON. With the Erase Data feature, all of the data on your iPhone or iPod touch will be deleted immediately after 10 unsuccessful login attempts. You should also go to Settings -> General and set the Auto-Lock time to 1 Minute so your device automatically locks after a minute of inactivity.

3. Use Find My iPhone and Remote Wipe

Apple has a service called Find My iPhone and Remote Wipe for MobileMe users. With Find My iPhone you can track the exact location of your iPhone  if you lost it or if someone stole it. You can also send a message to your iPhone asking whoever finds it to return it to you. With the Remote Wipe feature you can remotely delete your Addresses, phone numbers, emails, and photos. It costs $99/year to be a MobileMe user. You can find out more about MobileMe at http://www.apple.com/mobileme.

4. Enable the anti-phishing feature for Safari

Phishing websites are basically websites or links you visit that are disguised as other sites and steal your login information. Safari has a built-in feature that automatically detects and warns you if you are visiting a phishing website. You can go to Settings -> General -> Safari to turn it on. In my tests Safari was able to detect every phishing link, but you shouldn’t just rely on Safari. When in doubt, just type in the URL of the website you want to go to instead of clicking on a link that you suspect goes to a phising website.

5. Clear your history, cache, and cookies

Some websites keep you logged in unless you log out yourself. You should clear your history, cache, and cookies after viewing websites where you are required to enter in important information like your web mail account or credit card number. To do this, go to Settings -> General – > Safari.

6. Only use secure WiFi networks

If you use WiFi , you should only stick to trusted WiFi networks that have encrypted connections.

7. Stay updated with the most current firmware

Keep your iPhone or iPod touch up to date with the latest iPhone OS firmware so that your device is not vulnerable to any exploits in older firmwares. iTunes automatically checks for updates when you sync your device.

If you have any other tips, feel free to share them with us in the comments below!