The problem
1500 BTC are lost daily due to loss of access to wallets.
How does Tezoro solve it?
Step 1
Prepare a backup
Create a smart contract that can withdraw crypto from your wallet in the future in case you lose access to it or die. Your smart contract deploys directly to the blockchain via your MetaMask, so you don't share your credentials with Tezoro.
Step 2
Use your crypto as before
After creating a backup, you keep access to your assets without any restrictions. Nobody has access to your assets.
Step 3
Ooops...
You have lost access to your wallet or died. Now your assets will be lost forever?
Step 4
No worries đź‘Ś
You (or your heirs) can easily withdraw crypto from the wallet without accessing it. Simply click "Transfer" from your Tezoro account: your crypto will be withdrawn and transferred directly to a backup address you've specified. The backup smart contract is unhackable.
Forgotten the credentials of your Tezoro account? No worries. The backup will launch automatically on a date you specified as a backup date.
Forgotten the credentials of your Tezoro account? No worries. The backup will launch automatically on a date you specified as a backup date.
Key metrics
10,000x
reduced risk of losing access to your crypto assets if you have created two backups. Learn more
Full access.
until the execution of your backup, your assets remain available in your wallet without any restrictions
0.09ETH
service fee
Zero
chance to hack your backup
100%
of assets can be withdrawn from the wallet, access to which has been lost
May 7, 2025
you can specify the date on which the contract will automatically be executed (perfect for a last will)
30 days
to change your mind: you can cancel the execution of your backup during this period
We are transparent
Tezoro is a non-custodial service. We help you to prepare your backup, and you confirm it via your MetaMask and deploy it directly to the blockchain. Nobody, including Tezoro, can change the amount or replace the backup address. The only thing you allow us to do is initiate the transfer at the moment you need it.
The smart contract source code is open and verified via Etherscan - you can check it out by the link below.
The smart contract source code is open and verified via Etherscan - you can check it out by the link below.
Etherscan: Tezoro smart contract
FAQ
Why should I trust you?
- You don't need to. Tezoro is a non-custodial service: we don't ask you for your wallet's credentials and don't have access to your assets. You confirm everything directly through your MetaMask wallet. Even when you lose access, your crypto will be sent directly to a backup address without intermediaries.
- The source code of our backup smart contract is open and verified onEtherscan. You can check it out here.
- Even the Tezoro team cannot make any changes to your backup smart contract. The only thing you allow us to do is initiate the transfer when you need it.
What is Tezoro?
Tezoro is a non-custodial service that allows you to reduce the risk of losing your crypto by ~100 times by creating a backup: a smart contract that can withdraw crypto from your wallet and transfer it to a backup address even if you've already lost access to your wallet or died.
Why is Tezoro better than competitors and abstract wallets?
- Tezoro is easy to use: you can create a backup in 3 minutes through a user-friendly web interface.
- Tezoro is non-custodial: you don't have to share your assets or wallet access keys, either when creating a backup or when withdrawing and transferring your assets to a backup address.
- Tezoro is unhackable: your backup is a smart contract that is impossible to hack because of its nature.
- Unlike competitors, once you prepare a backup via Tezoro, your assets continue to be stored in your wallet without any restrictions. Backup smart contract will withdraw them if you lose access to your wallet or die. We call this approach "you don't have to leave the house if you have bequeathed it."
Can I use Tezoro with my mobile phone or tablet?
Yes, simply visit tezoro.io through a browser in the MetaMask app.
How to bequeath crypto?
Prepare a backup smart contract and set the date when you want to transfer assets to your heir. Your backup smart contract will withdraw assets from your wallet and transfer them directly to a backup address on this date.
Can I bequeath Bitcoin or ETH?
Yes, you can bequeath Bitcoin and ETH using Tezoro by firstly swapping it for WBTC and WETH.
What networks and tokens does Tezoro support?
Tezoro supports top tokens in the ERC-20 network: USDT, USDC, BNB, wETH and wBTC.
How to back up crypto?
Prepare a backup that can withdraw and transfer your crypto to a backup address even if you already lost access to your wallet.
Will my crypto become locked after I have created a backup?
No, you can continue to use your crypto as before. After creating a backup, you keep access to your assets without any restrictions.
Can I withdraw crypto if I have already lost access to my wallet?
Yes, this is exactly how Tezoro works.
Do I have to share my wallet credentials to create a backup smart contract?
No, Tezoro is a non-custodial service. We don’t ask for any credentials and don’t need access to your wallet to create a backup smart contract.
Can I use my crypto after creating a backup?
Yes, until the execution of your backup, your crypto assets remain available in your wallet without any restrictions. You can spend, transfer or withdraw it.
Does my crypto go through Tezoro when creating or executing my backup or in any other situation?
No, once created a backup, your crypto remains in your wallet. When your backup is launched, your crypto is transferred directly to a backup smart contract and then directly to a backup address without any third parties. Tezoro does not have access to your crypto at any point in time.
Will Tezoro have access to my wallet or to the crypto I backed up?
No, we do not have access to your wallet or assets. This is “blockchain magic”: we can only initiate the transfer of your assets to a backup address. We cannot change an amount or a backup address that you specified.
Why is it impossible to hack a backup smart contract?
It’s impossible to hack a smart contract due to its nature: it is either executed in the form in which it was created, or not executed at all.
How can I manage my backups and wills?
You can manage your backup smart contract through your Tezoro account or directly through your wallet.
What happens if my Tezoro account is hacked?
Safety is our #1 priority. We take the highest measures to protect our infrastructure.
However, in the unlikely event that your account is hacked, the only thing that can happen is that a hacker can transfer your assets to your backup address. It is virtually impossible to withdraw assets to any other address rather than the one you provided as your backup address. This security is guaranteed by the nature of the blockchain.
Thus, there is no reason for an attacker to try to hack your Tezoro account since it is entirely impossible to transfer your assets to any address other than your backup address. This security is guaranteed by the nature of the blockchain.
Moreover, any backup smart contract has a 30-day buffer. During this period, we will send you several email notifications so that you can easily cancel this process.
How much does the backup smart contract service cost?
The service fee is 0.09 ETH per backup. Also, there is a transaction fee for deploying a smart contract, which is calculated based on network busyness.