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After following Bitcoin and Cryptocurrencies for a few years, one thing became very obvious to me. The hacking risk is still to be taken seriously and the measures describe here help mitigate that risk as well.
This page is meant to list conventional best practices on hold to hold crypto-currency in an secure manner. I have an affiliate link for Kickstarter digital wallet bitcoin below. Here is one way to stamp your recovery seed onto metal plates. Please scroll down to see alternative methods. These steel plates are designed to have a BIP39 24 or 25 word passphrase stamped onto them, using a letter punch kit, to kickstarter digital wallet bitcoin recovery of crypto currency private keys.
Whether for use with a software wallet, kickstarter digital wallet bitcoin a hardware wallet like the Trezor, having the recovery passphrase stamped onto corrosion-proof and kickstarter digital wallet bitcoin metal plates minimizes the risk of loss of private keys.
You can see letter punching in action on this video, although with our plates we will punch the full BIP39 words using letters, not numbers: The stainless steel kickstarter digital wallet bitcoin can be ordered from Lasergist using instructions below. They are laser-cut from 3mm stainless steel or any kickstarter digital wallet bitcoin thickness available on lasergist. Technically, the middle plate is the only one required and kickstarter digital wallet bitcoin laser markings indicating passphrase word ordering.
By having additional plates cut, the passphrase can be hidden from sight and zipties can be added to prevent tampering. It also increases the weight of the whole assembly close to 1kg with 3x 3mm plates which helps prevent accidental misplacement.
The titanium plates were ordered as a custom-made item from Calti Wallets using the same designs available below, I believe he plans on making more of those available. They are much harder to punch than the stainless steel ones, so I recommend a carbide tip engraver see additional hardware below.
If you just want the passphrase plate with the 25 locations to stamp words, the two files below are all you need. And finally this files contains all above designs on different layers, which may be useful if you wish to customize the design further. You may change the thickness and material used, and kickstarter digital wallet bitcoin sandblasting if you wish selecting different options may change the price.
If you ordered seperate plates and want to fasten them together, you may order the following screws:. The 12mm screws are sufficient to hold 3x 3mm plates. I ordered this kickstarter digital wallet bitcoin from ebay: The design on the plate is designed to accomodate words at least 8 characters long, with each letter 4mm x 4mm.
If stamping proves difficult I found it to be extremely difficult on the titanium kickstarter digital wallet bitcoin 2 platesyou could use an electric Carbide Tip engraver such as this one Carbide Tip engraver. Feel free to ask those on the Reddit Thread or contact bulletproofbitcoin. It sounds like a great product, many people like it. The thing that worries me is that the words could be accidentally scrambled, which is impossible to do if the recovery seed kickstarter digital wallet bitcoin been stamped onto a plate of metal.
Blockplate Stainless steel plate kickstarter digital wallet bitcoin uses an innovative method to store the recovery seed onto a grid, without needing a letter punch kit, only a single basic punch. They have cool videos showing the punching or engraving technique. Order a simple stainless steel or titanium plate from Ebay and punch it. It may be difficult to find the right size, but this is the cheapest option of them all. You could just write your seed on a piece of paper, but a piece of paper is easy to misplace, accidentally throw away, the ink may fade, flood and fire are a concern.
Hard to protect against tampering. But also much more complex and costly. It requires significant kickstarter digital wallet bitcoin investment in money and time. Good practices Holding your coins on an exchange, even a reputable one, even with 2FA enabled, is risky. Someone could impersonate you and steal your funds within minutes, while you are sleeping.
The exchange could get hacked. You will not get your coins back if that happens. Get yourself a Trezor or Nano Ledger S. A hardware wallet allows you securely receive and perform crypto-currency transactions even on a malware-infested computer. Make sure to buy your hardware wallet from an official source. Do not use the hardwaret wallet if it comes with a scratch-off card!!
Properly securing that passphrase is the most important step of the setup. This is the passphrase that you will stamp onto a plate of metal to preserve it for decades to come. Losing or destroying your hardware wallet would not affect you in any way, as long as you safeguard that recovery seed, you will still have access to your funds. You must be the only person to see your recovery seed. Do not ask someone else to stamp it into metal for you.
NEVER enter your recovery seed into any electronic device, file, website, or even a password manager. The recovery seed will be shown to you ONCE on the screen of your hardware wallet, but never leaves its memory.
You may write it down on paper temporarily in a private location, until kickstarter digital wallet bitcoin have a chance to secure the materials for stamping on metal. Do this before you send large amounts of funds to the hardware wallet.
And repeat this kickstarter digital wallet bitcoin time you duplicate your recovery seed onto a new medium. Why you must test your recovery seed before kickstarter digital wallet bitcoin large amount of funds Recovery Seed storage By default, the 24 word recovery seed is the only thing required to access private keys.
This means it can survive even a sustained, severe house fire. Reddit thread on metal survivability to house firesBlockplate fire survival videoColdTI Torch videoStamping and fire resistance of brass, copper, aluminum. Properly securing and storing your recovery seed is much more important than securing your hardware wallet. In fact you should treat your hardware wallet as a disposable, fragile device which can be lost, destroyed, or wiped out any time, but can be replaced with a small amount of money.
Your recovery seed cannot be kickstarter digital wallet bitcoin. Given the risk profile of my geographical location, I rate this probability as low. Titanium kickstarter digital wallet bitcoin Steel Plates Here is one way to stamp your recovery seed onto metal plates. Laser Engraving, Sandblasting You may change the thickness and material used, and uncheck sandblasting if you wish selecting different options may change the price.
Sandblasting Additional Hardware If you ordered seperate plates and want to fasten them together, you may order the following screws: If stamping proves difficult Kickstarter digital wallet bitcoin found it to be extremely difficult on the titanium grade 2 platesyou could use an electric Carbide Tip engraver such as this one Carbide Tip engraver Finally, you can order zip ties to prevent tampering with the seed.
Blockplate Blockplate Stainless steel plate which uses an innovative method to store the recovery seed onto a grid, without needing a letter punch kit, only a single basic punch.
They have cool videos showing the punching or engraving technique Simple Metal plate Order a simple stainless steel or titanium plate from Ebay and punch it. Piece of Paper You could just write your seed on a piece of paper, but a piece of paper is easy to misplace, accidentally throw away, the ink may fade, flood and fire are a concern.
