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Miden wallet extension setup and seed phrase security guide
Secure Your Miden Wallet A Step-by-Step Extension Setup and Seed Phrase Protection Guide
Immediately after installing the browser add-on, disconnect from the internet. This initial action isolates the procedure, creating a shielded environment for generating your cryptographic keys. Proceed with the creation of a new vault solely while offline; the software will produce a unique sequence of 24 recovery words. This is your master key, existing nowhere else at this moment.
Physically transcribe these words onto a durable material like stainless steel or specialized paper, using a pen that won't smudge. Digital replication–screenshots, cloud notes, or typed documents–introduces permanent vulnerability. Verify the transcription twice, checking each word's order and spelling against the original display. Store this record in a discrete, physically secure location, separate from your primary devices.
The software will subsequently request you to re-enter a random selection of these words. This step is not a formality but a critical verification of your accurate recording. Successfully completing this check confirms the backup's integrity. Only then should you reconnect your device to the network. From this point, your public address is ready to receive assets, while the private control remains anchored by your offline phrase.
Treat the recovery phrase with the same protocol you would apply to a physical master key for a high-security vault. Its exposure grants irrevocable control over your holdings to any third party. For ongoing protection, consider using a hardware signing device; this keeps signing authority offline, requiring physical confirmation for any transaction, thereby adding a persistent defensive layer beyond the initial backup.
FAQ:
I installed the Miden wallet extension but I'm stuck at the seed phrase backup. What happens if I close the window now?
If you close the window during the seed phrase backup step, the setup will not be completed. Your wallet will not be active or accessible. You must write down the 24-word phrase shown on your screen and confirm it in the next step to finalize wallet creation. The extension will not proceed without this verification. Your seed phrase is only displayed once at this exact moment. Closing the window means you'll need to start the entire setup process from the beginning, generating a completely new seed phrase.
Is it safe to store my seed phrase in a password manager like 1Password or Bitwarden?
Using a password manager is more secure than storing the phrase in a plain text file on your computer or taking a screenshot. Reputable password managers encrypt your data. However, this method creates a digital copy, which introduces risk if your manager's master password is compromised or the service has a vulnerability. The most secure method remains writing the phrase on paper and storing it physically in a safe place, completely offline. A password manager is a practical compromise for daily use, but you should still maintain a physical, offline backup in a secure location like a safe.
Can I use the same seed phrase from my Ethereum wallet on Miden?
No, you cannot use a seed phrase from an Ethereum or other blockchain wallet directly with your Miden wallet. The Miden wallet generates a specific 24-word phrase using the BIP-39 standard, but it is for the Miden VM environment. While the word list is standard, the derived cryptographic keys and addresses are specific to Miden's architecture. Importing an external seed phrase is not supported. You must use the unique phrase generated during the Miden wallet setup and keep it separate from phrases used for other networks.
My computer crashed and I lost the extension. I have my seed phrase. How do I get my wallet and assets back?
Recovering your wallet is straightforward if you have your 24-word seed phrase. Reinstall the Miden wallet extension in your browser. Instead of selecting "Create New Wallet," choose the "Import Wallet" or "Recover Wallet" option. You will be prompted to enter your seed phrase in the correct order. After entering it, the extension will reconstruct your wallet's private keys and restore access to all your accounts and assets on the Miden network. The process does not restore browser-specific settings, so you may need to reconfigure network preferences or re-add specific accounts.
