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14 votes

Is it safe to use a second-hand Trezor (like from ebay)?

If you update the firmware you are probably safe, but why take the chance? The Trezor itself (or even the included USB cable https://www.wired.com/2014/07/usb-security/) could have been corrupted/...
Nicole Olsen's user avatar
8 votes
Accepted

How do I use the new GPG signing feature with my Trezor?

GPG Keys "TREZOR can now securely generate GPG keys for signing of emails or documents (using the NIST256P1 and Ed25519 curves). Currently, this update does not allow for GPG decryption, a feature ...
prodigious's user avatar
6 votes
Accepted

Can you ever view your private keys on the TREZOR?

I don't think you can as the Trezor (and every other hardware wallet) does not expose your private keys to the computer it is connected to. This is how you can still securely spend your Bitcoin even ...
Ava Chow's user avatar
  • 71.1k
6 votes
Accepted

What is the difference between PSBT support in Coldcard and Trezor?

The Coldcard handles PSBT directly and natively. A PSBT can given to the device by writing it to a microSD card and inserting the card into the device. It will be able to load the PSBT and process it ...
Ava Chow's user avatar
  • 71.1k
5 votes

How do I use the new GPG signing feature with my Trezor?

(trezor-agent developer here...) Please take a look at the latest trezor-agent version here. I'd be happy to fix any issue with the documentation, and extend it with more examples to make it more ...
Roman Zeyde's user avatar
5 votes
Accepted

How does Trezor's wallet recovery work if the private key never leaves the device?

The Trezor generates a seed offline on your device. Neither the private key nor this seed are ever shared with SatoshiLabs. In fact, you're in sole control of your private key: when you first set up ...
Murch's user avatar
  • 76.1k
5 votes
Accepted

Migrate old Bitcoin Core wallet to Trezor

Do I have such a recovery seed? No. Bitcoin Core does not use mnemonics nor is the seed exportable. Is there any other way I can migrate my wallet to the trezor? (Other than creating a new wallet ...
Ava Chow's user avatar
  • 71.1k
4 votes

How does Trezor's wallet recovery work if the private key never leaves the device?

The Trezor wallet is a Hierarchical Deterministic wallet. This means that the entire wallet is derived from the seed. The seed is encoded as the 24 word mnemonic which is what you have to backup. To ...
Ava Chow's user avatar
  • 71.1k
4 votes
Accepted

Would I be able to recover coins if Trezor went out of business?

Yes. Trezor uses BIP39 and is compatible with any other wallet that would. You can in fact import your seed into electrum, though this to some extent defeats the purpose of having a hardware wallet.
Thax's user avatar
  • 76
4 votes
Accepted

If hardware wallet provider disappears, can I still manage my coins?

I understand these wallets only work with provider's mobile app, online interface or their computer software, correct ? No. Some of the most popular hardware wallets are supported by third party ...
Ava Chow's user avatar
  • 71.1k
3 votes

Online exchange bitcoin balance to hardware wallet

Generate an address on the hardware wallet. Then log in to your web wallet account and send all your coins to that address. That's all.
Nate Eldredge's user avatar
3 votes
Accepted

Can you deposit to an unplugged Trezor?

Yes. When you initialize your Trezor, it generates a private and a public key. Private key never leaves the device (that's the core value proposition). That means you can't sign transactions (spend ...
Sergei Tikhomirov's user avatar
3 votes
Accepted

Can I run Trezor Wallet against my own local node on OSX?

Bitcore fork from SatoshiLabs is indeed available only for 64-bit linux. You can try to build the necessary binaries yourself and then update the npm install scripts in bitcore, but that is very hard....
Karel Bílek's user avatar
  • 2,705
3 votes
Accepted

What happens when a hardware wallet, like Trezor, suffers a hardware damage?

For Trezor specifically, just check their website for details. Essentially, you need to have: a new or wiped Trezor wallet. your Trezor recovery card, filled out correctly. a computer with the ...
Hannah Vernon's user avatar
  • 1,559
3 votes
Accepted

How To Traverse Bitcoin Addresses in HD Wallet

Most (but not all) wallets will follow what is specified in BIPs 32, 44, and 49. BIP 32 defines what derivation paths are and what they mean. It is the standard for deriving all of the keys in a HD ...
Ava Chow's user avatar
  • 71.1k
3 votes

Derive LTC Segwit (M-Address) private key from Trezor

When you are deriving addresses, you are actually deriving private or public keys from which an address is derived. However addresses are actually an encoding of what type of script to use in the ...
Ava Chow's user avatar
  • 71.1k
3 votes
Accepted

mnemonic pass phrase generation in wallets / hardware wallets - security flaw?

Wouldn't it be saver to generate a mnemonic passphrase manually by just taking random words from a lookup table? No, it would not be. This method may even be insecure if you are actually doing it ...
Ava Chow's user avatar
  • 71.1k
3 votes
Accepted

24 Word Mnemonic Seed Phrase for Ledger Nano S usable on Trezor?

You can use them, but you need to ensure that the hardware wallets use the same address derivation paths. For the hardware wallets you mentioned (Trezor and Ledger) both of them use the BIP 39/BIP 44 ...
Ugam Kamat's user avatar
  • 7,427
2 votes
Accepted

Is there a mobile wallet that works with a Trezor?

Is there a mobile wallet that support using a Trezor hardware wallet to spend coins? You first need an OTG cable and a phone that supports acting as a USB host. Trezor has not released a mobile ...
Louis's user avatar
  • 126
2 votes
Accepted

How to view Bitcoin Cash (BCC) on Trezor Wallet

BCH (Bcash) as Trezor refer to it, is now available on https://beta-wallet.trezor.io after applying 1.5.1 firmware upgrade. Go to https://beta-wallet.trezor.io You can also use tool to claim your BCC,...
Jonathan Clark's user avatar
2 votes

Trezor Firmware update just hangs indefinitely

Try it again. If it does not work, contact support and ask for a replacement unit.
Pavol Rusnak's user avatar
2 votes

Can you ever view your private keys on the TREZOR?

Generating, and thus exposing, the private key using the seed words would be very foolish. It would be the same as not using a TREZOR at all. You NEVER want the private keys be other than safely ...
Marcel's user avatar
  • 21
2 votes

Segwit2x and Trezor

As you can see from an answer given by a Trezor's staff member in this reddit post on 5th October 2017: We will do an official communication once it is clear what Segwit2x is and what is not. ...
salvarico's user avatar
  • 163
2 votes

Trezor issue - "The bitcore server does not reply. Cannot connect to wallet"

Try the other servers. This means Trezor's blockchain explorers (for example, this one: https://btc-bitcore3.trezor.io) are under maintenance, or restarting, or can't be connected (DNS/ISP problems).....
MCCCS's user avatar
  • 10.2k
2 votes
Accepted

How can I recover BCH sent to a Trezor BTC address?

Following the steps from "How to claim your Bitcoin Cash (Bcash)" by Trezor Blog should do the trick. https://blog.trezor.io/claim-bcash-bitcoin-cash-bch-bcc-trezor-wallet-f0a810d5864a Steps: 1) ...
MCCCS's user avatar
  • 10.2k
2 votes

Unable to Connect Trezor

You should have your Trezor recovery card with 24 words you have written down. With these 24 words (the recovery seed) you can access your coins without a Trezor. Here is an explanation. If this ...
0xb10c's user avatar
  • 1,440
2 votes

Can Bitcoin Diamond be claimed on Segwit addresses?

Bitcoin Diamond does support segwit, so it is possible to claim it. However, it may not be possible to (safely) do it directly from the trezor. There is apparently an Electrum for Bitcoin Diamond, ...
Raghav Sood's user avatar
  • 17.1k
2 votes
Accepted

"Inspect the TREZORs memory with an electron microscope" documentation bug?

If you follow the change recovery seed link in that quote, you will see that the instructions include sending the bitcoins from the old account to a new account. The authors are saying that upon ...
Adam Millerchip's user avatar
2 votes
Accepted

I provided my XPUB and YPUB to Trezor support - should I continue to use my Trezor?

XPUB refers to an extended public key, and because it is only a public key, you have not compromised your private keys. Thus it is safe to continue using, yes. You have, on the other hand, compromised ...
meshcollider's user avatar
  • 11.9k
2 votes
Accepted

Is a Trezor hardware wallet dependent on wallet.trezor.io?

No, a Trezor is not dependent on trezor.io or SatoshiLabs still existing. You can use a Trezor with any wallet software that has implemented support for Trezors. One such wallet is Electrum.
Ava Chow's user avatar
  • 71.1k

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