> For the complete documentation index, see [llms.txt](https://startower.gitbook.io/star-tower-chain/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://startower.gitbook.io/star-tower-chain/basic-knowledge/what-is-passphrase.md).

# What is Passphrase?

When creating a hidden wallet, a passphrase is an important tool for encrypting and protecting the wallet. It is usually a string composed of words or phrases and is used to create the private key or seed phrase of the wallet.

The purpose of a passphrase is to increase the security of a wallet and ensure that only those who hold the correct passphrase can access and control the assets in the wallet. If there is no correct passphrase, it is impossible to recover or reconstruct the wallet. Therefore, it is very important to keep the passphrase well.

Here are the security points to note when using a passphrase.

Confidentiality: Do not disclose Passphrase to others. Make sure only you know and hold Passphrase. Avoid disclosing Passphrase on social media, chat apps or in public places.

Complexity: Choose a sufficiently complex Passphrase. It should contain random words or phrases and avoid using content that is easily guessed, such as common phrases, dates, personal information, etc. Using a random password generator to create strong passwords can improve security.

Backup: Make sure to properly backup Passphrase. Write it down on paper and store paper backups in a safe place, away from cyber and physical threats. Don't rely solely on electronic devices or online storage, as they may be subject to data loss, failure or hacking.

Periodic replacement: It is a good security practice to replace your Passphrase regularly, especially if you suspect that your Passphrase may have been compromised or is no longer secure. Passphrase replacement also means that your wallet address is changed along with it!

Beware of phishing attacks: Be aware of phishing attacks and do not click on links from unknown sources or suspicious websites to prevent being induced to enter Passphrase.

Please remember that the passphrase is the key to accessing and controlling your virtual currency assets. If you lose or forget the passphrase, you may not be able to access your assets again. Therefore, it is very important to keep it properly and ensure its safety.