> For the complete documentation index, see [llms.txt](https://get-verso.gitbook.io/get-verso-launch-your-web3-app-faster/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://get-verso.gitbook.io/get-verso-launch-your-web3-app-faster/security.md).

# Security

## Biometric Authentication

For end-user app security we enable biometric authentification using any available option on the phone : \
\- Face \
\- FingerPrint \
\- Weak or Strong biometric (depending on availability).

### Secure Storage

*\[For our customers who have chosen this option for Key Management]*\
For protecting the end-user private key and seed phrase, the secret data is stored in the phone using : \
\- Keychain for iOS devices. [More information here](https://developer.apple.com/documentation/security/keychain_services#//apple_ref/doc/uid/TP30000897-CH203-TP1).\
\- AES encryption is used for Android devices. AES secret key is encrypted with RSA and RSA key is stored in KeyStore (more info here on [Android KeyStore system](https://developer.android.com/privacy-and-security/keystore)) 

### Spam Token

To protect the end-user from interacting with spam tokens, we maintain a database of spam token (manuel + De.Fi Scanner integration) so that we hide those token from the portfolio and flag the receive transaction in the transaction history. 


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