1.5 k

The Best Metal Cryptocurrency Wallet Backup Passphrase

Any crypto user should be concerned with the security of their digital assets. As you may know, cryptocurrencies are decentralized; thus, the sole responsibility of securing crypto assets lies with the owner. While hacking presents a serious risk to cryptocurrencies, user error involving the loss of private keys, seeds, and mnemonic passphrases has come out as a common way individuals lose their crypto assets. There are numerous cases where individuals lost their entire crypto portfolio by losing their laptops, hard drives, hardware wallets, or forgetting their seed/passphrase. 

To prevent such losses, crypto holders must safely store their seed phrase/ passphrases; they are the only solution to recovering lost crypto wallets. There are plenty of options for storing seed phrases and passphrases, including writing it down on paper and laminating or engraving on stone tablets and metals. But the most durable option when it comes to storing seeds and passphrases is seed storage devices. There are various metal wallet backups, and you should choose the best one. Here’s are some options you may consider to secure your seed/passphrase 

4 Best Metal Wallet Backup Passphrase

  • Coldbit Passphrase

Weight: 0.115 kg 

Dimensions: 10 X 0.13 X 0.13 cm 

Enclosure: Foil, Brass Tube, Faux Radiation 

Material: Steel, Titanium 

Coldbit Passphrase is a durable solution for storing your wallet seed and passphrase backup. The seed storage device can store up to 6 BIP-39 passphrases, with each passphrase consisting of up to 28 characters in length or 4-6 words long. The device is constructed of heat and corrosion-resistant stainless steel molded in a hexagonal shape. 

Coldbit metal passphrase offers comprehensive protection against water, fire, corrosion, electrical-shocks, and pretty much any physical destruction. Nonetheless, after stamping your seed/passphrase on the Coldbit Passphrase, you need to ensure it’s stored in a safe place, preferably from the wallet seed backup.    

  • Steelwallet

Weight: 12 Ounces 

Dimensions: 8.03 x 5.67 x 0.71 inches

Material Type: Stainless Steel 

Steelwallet is another excellent offline backup tool for storing your recovery seed. The tool offers high-end protection against fire, water, electrical-shocks, corrosions, and pretty much any physical obstacles. The metal backup passphrase employs a simple yet vastly attack-resistant means of backing up your mnemonic seed. 

The device comes in a set encompassing a puncher and two-laser engraved stainless steel sheets with space for six words on each side to store 24 mnemonic seed words. To engrave your seed/passphrase, you first need to use a pen to highlight the exact position you’re going to punch. Then you punch the first four letters of each word to identify the mnemonic word. Then you countercheck the engraved seed/passphrase to ensure you haven’t made any mistake. Finally, you can use the puncher to mark the highlighted fields’ sheets and then store your Steelwallet in a secure place. 

Steelwallet is a simple yet efficient means to backup the seed phrase/passphrase of your crypto wallet.  

  • Cryptosteel Capsule

Weight: 14.4 Ounces  

Dimensions: 4.09 x 2.36 x 0.24 inches

Enclosure: Stainless Steel 

Material: Stainless Steel 

Cryptosteel Capsule is a high-end metal wallet backup passphrase to secure your seed phrase/passphrase.  The device is constructed with stainless, shockproof, acid-resistant, and fireproof material that survives extreme physical stress and temperature of up to 1400C/2500F. The metal wallet employs the long-standing idea of engraving. It comes in a DIY assembly format, thus allowing you to engrave your seed/ passphrase all by yourself without third parties’ involvement. It’s double-sided, with each side being able to hold 12 mnemonic phrases.  The adjustable separators enable you to store your mnemonic seed in full, plus supports all printable ASCII characters. 

Cryptosteel is compatible with most secret sharing and key generation algorithms, meaning that your passwords are protected and not visible at first glance. This means that your mnemonic seed will remain safe even in cases of theft, vandalism, or violence. Better yet, the device is resistant to next-gen surveillance methods, thus offering full protection from hackers. 

Cryptosteel is affordable, highly durable, and safe from hackers and disasters, including fire, floods, static electricity, and even EMPs. The metal backup offers you CCSS Level 3 compliance for high safety standards. The metal wallet backup is compatible with several crypto wallets, including Trezor wallets, Ledger Nano S, Keepkey, etc.            

  • Crypto Key Stack

Weight: 8 Ounces  

Dimensions: 5.87 x 4.21 x 2.13 inches 

Material: Anodized Stainless Steel 

Included: Private Electric Engraver and a Storage Bag 

Crypto Key Stuck is an outstanding metal wallet backup device to store your mnemonic seed/ passphrase. The device is designed to withstand a range of physical threats, including fire up to 2200°F, water, and corrosion. The device’s design takes the form of a set of anodized stainless steel held together in a place by a screw. These plates take two forms: the first plate is engraved with the numbers 1 to 14, with a space allowance for engraving the mnemonic seed. The second plate is blank, and it’s used to enclose the engraved plates or inscribe generic data. 

Crypto Key Stuck comes with an electric engraver to engrave your seed privately without third parties’ involvement. The engraving process takes about five minutes. Once engraved, the plates are screwed in place using an ideal tool such as a Dremel then stored safely.      

Crypto Key Stuck can withstand corrosion from the acid bath, butane torch, and a 20-ton hydraulic press. This device comes with a storage bag and will keep your mnemonic phrase/passphrase very safe at a good value for your money.     


Mnemonic phrases and passphrases are crucial in recovering your wallets in case you misplace your hardware wallet or your computer, tablet, phone, hard drive, or whatever device harboring your wallet gets damaged or lost. Seed phrases usually consist of 12 to 24-word phrases that can generate all of the addresses and the private key associated with a particular wallet. Losing or forgetting your recovery seed/passphrase surmounts losing your entire crypto portfolio; thus, it’s crucial to keep them safe and secure.  

Bitcoin live price
price change

While there are several means of safely storing seeds and passphrases, metal wallets stand out as they usually offer top-notch protection against hardware and software threats, including fire, extreme physical stress, flooding, hacking, etc. Among the numerous metal wallets filling up the crypto space, you may want to consider the above-discussed metal wallets for the best results.  

Stay up to date with our latest articles

More posts

Here are the Benefits of Auditing Your Smart Contract with SolidProof

Auditing a smart contract is vital to ensure that the code functions as intended. SolidProof offers a wide range of services to help with this process. The company guarantees a sound audit process and an experienced team of auditors.  Here are the benefits of auditing a smart contract with a reputable company such as SolidProof: A wide range of services: SolidProof offers a wide range of services to help with the audit process, including code review, security analysis, and more.…

Smart Contracts Vulnerabilities Specific to The DeFi Space

As the financial world moves increasingly online, it's becoming more and more essential to ensure that all transactions run securely. One way this is possible is through the use of smart contracts.  Smart contracts are computer programs that automatically execute the terms of a contract. They provide a secure way to conduct transactions without relying on third-party intermediaries.  While the use of smart contracts offers many advantages, they are also vulnerable to attack. In this blog, we will explore how…

Malicious Attacks on Smart Contracts that Auditors Can Easily Identify

With many businesses adopting blockchain technology and Smart Contracts, offering reliable security audits in the industry has become increasingly important.  Businesses may protect their assets and contracts by recognizing and preventing harmful assaults. This blog post will explore the different attacks a group of criminals can carry on Smart Contracts. We'll also look at real-world instances of assaults to help you secure your contracts. What are Smart Contracts? Understanding the Benefits of This Technology What are smart contracts? They are…

How Smart Contract Audit Can Help Prevent Hacks

As companies move toward implementing smart contracts, the need for technical audits becomes increasingly essential. Having a third-party auditor check your contracts for vulnerabilities can prevent your company from suffering from a hacking attack.  What are Smart Contracts? A smart contract is a script that automatically carries out a contract's provisions. Smart contracts are self-executing, meaning that once the system verifies the meeting of pre-determined conditions, the contract will automatically execute. This eliminates the need for intermediaries such as lawyers…

Top 10 Ways to Earn Free Bitcoin in 2022

Here are the best ways to earn free Bitcoin when your purse is light. --- Are you interested in Bitcoin, but still hesitant to risk putting money towards it? Alternatively, are you looking to sat every sat possible, but lack the dry powder to buy more? Here’s a secret: you can put more bitcoin in your pocket without spending a dime – or even doing any real work.  That’s not to say you’ll earn much bitcoin without either of those…

Are Gold-Backed Tokens Worth Investing During Crypto Bear Market?

The crypto market is under the complete control of bears, investors taking short positions to profit from declining prices. In this unstable environment, new capitalists are fearful or skeptical when funding projects. Instead, they turn to more reliable assets that would not wipe out their portfolios when or if they flop. Gold-backed tokens represent a category of assets ready to provide portfolio stability and allow investors to overcome the bear market without too many losses. On the contrary, gold-pegged tokens…

What is Taro? Trading Assets and Currencies on Bitcoin

Taro leverages Bitcoin, lightning, and Taproot to enable the peer-to-peer transfer of currencies and assets beyond just BTC. —  Worried that Bitcoin is too boring to play within the growing digital asset economy? Fret no longer.  Using Taro, the original blockchain network can support the decentralized exchange of multiple assets – including fiat currencies. Moreover, the protocol works together with the lightning network, letting users transact – instantly and for free – with non-BTC-denominated balances.  Read below to learn about…

What is Fedimint? The Custody Solution to Bitcoin Privacy

Fedimint combines distributed custody with blind-signed ecash tokens to let Bitcoin users transact in private. --- Despite its growth, Bitcoin still faces some glaring limitations to reaching mass adoption as a fully censorship-proof payments network. One of them is privacy. Bitcoin’s ledger is fully open and public, meaning anyone can track another person’s transactions if they know his public address.  The other is a custody problem. While wallet software UX has improved considerably over time, many Bitcoin holders still store…

What Is a Crypto Bear Trap?

Cryptocurrencies are often incredibly volatile and can see massive price swings in a short time.  This makes them ripe for bear traps. A bear trap is a situation where traders wrongly think a coin is about to reverse a downtrend. These events often result in significant losses.  This guide will discuss crypto bear traps, how to identify them, and the risks involved in these situations. Introducing Crypto Bear Traps A bear trap happens when a trader buys assets, expecting the…

Understanding the GameFi Phenomenon

The GameFi industry is changing the way people think about gaming and finance. It provides a new way for gamers to interact with each other and earn money. It is also giving people a new way to invest their money.  The GameFi industry has the potential to change the way these industries operate. This guide will look more closely into this new business, covering several features. What Is the GameFi Sector? The GameFi sector is a crypto-based industry that uses…