this is just for discussion how to secure the wallet. I do not think there is a security system and there will be no theft in the wallet.
If you choose your wallet or phone software, you need to be extra careful! Remember that bitcoins are stored inside your device. If your computer or phone breaks down, your bitcoin is gone too! Thieves can also take your bitcoin if it gets access. Consider the following tips to avoid losses:
Perform regular backups regularly
Save the backup on another device like in flash or another computer.
Use the encryption feature
With encryption, each transaction requires a login with a password. This prevents thieves who manage to gain access to your computer.
Do not forget the password
Losing a password equals losing your money! Wallet does not provide a password forgot feature.
Learn more please learn how to secure your wallet here: http://bitcoin.org/en/secure-your-wallet
Do you guys have a better idea to avoid theft in the wallet?
Your Knowledge and Ideas will be more helpful if shared.
Of course, we need to secure our Bitcoin wallet from hacker so we really need to install security application for the protection and safety of our investments.
You may try google authenticator that requires additional random passwords provided by that apps and it changes from time to time.