> For the complete documentation index, see [llms.txt](https://docs.subwallet.app/main/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.subwallet.app/main/extension-user-guide/cold-wallet-management/attach-polkadot-vault-prev.-parity-signer-accounts.md).

# Attach Polkadot Vault (prev. Parity Signer) accounts

Polkadot Vault is a cold storage solution that turns your iOS or Android device into a dedicated hardware wallet for Substrate-based networks. Your keys are kept secure (i.e., offline) at all times, and transactions are signed in an air-gapped way via QR codes.

{% embed url="<https://www.youtube.com/watch?v=9qKf_FrwzxE>" %}

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We advise you to create a backup of your recovery phrase and update to the latest version of Polkadot Vault if you are utilizing Parity Signer (an older version of the app before its rebranding).
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Here are the articles in this section:

{% content-ref url="/pages/hTUUQ24FBtjyUJG2tbfx" %}
[Add networks in Polkadot Vault](/main/extension-user-guide/cold-wallet-management/attach-polkadot-vault-prev.-parity-signer-accounts/add-networks-in-polkadot-vault.md)
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{% content-ref url="/pages/nQ4tucTP0a56SnieNWhe" %}
[Update network metadata](/main/extension-user-guide/cold-wallet-management/attach-polkadot-vault-prev.-parity-signer-accounts/update-network-metadata.md)
{% endcontent-ref %}

{% content-ref url="/pages/TsKkqKMSt1eBDfkVRVbm" %}
[Attach an account](/main/extension-user-guide/cold-wallet-management/attach-polkadot-vault-prev.-parity-signer-accounts/attach-an-account.md)
{% endcontent-ref %}