> For the complete documentation index, see [llms.txt](https://doc.lockerprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.lockerprotocol.com/help/faq.md). # FAQ Short answers to the questions everyone asks. ### Do I really need a second device? Yes. The safety comes from the Vault never touching the internet. Your everyday phone goes online all day; it cannot be the Vault. Any old phone or tablet with a camera works. ### Is the Vault free? Yes. So is the extension. Both are free software under a non-commercial licence. ### Where are my keys? Only on the Vault, encrypted with your master password. Not in the extension, not on any server. Nobody at Locker Protocol can see or recover them. ### I lost the Vault (broken, stolen). Are my funds gone? No. Your funds are on the blockchain. Install the Vault on another device and [import your secret phrase](/vault/add-an-account/import-a-secret-phrase.md) or [restore a QR backup](/vault/add-an-account/restore-a-qr-backup.md). If the old device is stolen, the thief needs your master password, and 50 wrong tries erase it. ### I lost my paper backup but still have the Vault. Open the account → **Show secret phrase** (password required) and write it down again, now. ### I forgot my master password. The Vault cannot recover it. Erase the device from the lock screen (*Forgot password? Reset this device*) and restore from your paper backup. See [Lock screen & forgot password](/vault/lock-screen-and-reset.md). ### Can I use two Vaults? Yes. Import the same secret phrase on both, or use different accounts on each. The extension can watch accounts from several Vaults. ### Can I use the Vault with MetaMask instead of the extension? No. The Vault used to offer an EVM-only sync QR that MetaMask's hardware-wallet flow could read; that mode was removed. Extension Sync now emits one payload, carrying every chain, for the Locker Protocol Wallet extension — which is also the only side that shows the Vault's risk analysis and the non-EVM chains. ### Why is the camera preview blurred? On purpose. Neither screen ever shows a readable code from the camera, so nobody can read a QR over your shoulder. Scanning works normally. ### Why does the extension open a tab for the camera? Browsers only let a full tab ask for camera permission. Allow it once there; afterwards scanning works in the side panel. See [Camera permission](/browser-extension/camera-permission.md). ### The QR will not scan. Closer, still, brighter. Animated codes need a second or two of steady view. On the extension use **Larger QR** / **Slow down**; on the Vault **Present fullscreen**. ### What is "watch-only"? The extension knows your address, not your key. It can show balances and prepare transactions; only the Vault can sign. ### Does the extension send my data anywhere? Your address goes to public RPC nodes and explorers to read balances, and to price/swap services when you use those features. No telemetry, no account. See [Privacy](/reference/privacy.md). ### What does the extension's password protect? What the extension *shows and stores* (addresses, balances, sites). Not money: there are no keys to protect there. ### Can a website steal my funds through the extension? It can *ask* for a signature. It cannot get one without you scanning on the Vault and tapping **Sign** after reading the Vault's own review. When the Vault has proven a danger (an unlimited approval, a handover of your account, code deployment, a smuggled transaction) it locks Sign until you tick the acknowledgement. A call it merely cannot decode is shown in grey, with the contract named when it is known and with what was checked anyway. ### Which networks are supported? Ethereum and every EVM network, Bitcoin, Solana, Tron, Sui, Stellar. See [Supported networks](/reference/supported-networks.md). ### How do I update the Vault? Reconnect the device once, open the Vault, wait for the offline copy to be ready, go back to airplane mode. The banner tells you when a new version loads. ### Is Hyperliquid trading safe? The *keys* are safe: deposits and withdrawals are Vault-signed and the agent key can only trade. The *trading* is leveraged and you can lose your deposit. See [Hyperliquid perps](/browser-extension/hyperliquid-perps.md). ### Can I verify the extension is really the published source? Yes. See [Reproducible build](/reference/reproducible-build.md). ### Where do I get help? [Contact & community](/help/contact.md). --- # Agent Instructions This documentation is published with GitBook. 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