gesicherte Fakten über Ledger Recovery
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was wir bis jetzt wissen
[https://www.ledger.com/recover](https://www.ledger.com/recover)
* ledger recover ist ein kostenpflichtiger Abo-Dienst, der es erlaubt, **geheime Wiederherstellungsphrasen** aus dem Gerät zu extrahieren (wir dachten, dies sei in der Vergangenheit nicht möglich gewesen, daher die ganze Polemik darüber)
* Kompatibilität nach Ledger :Ledger Recover wird mit Ledger Nano X kompatibel sein. In naher Zukunft wird es auch mit Ledger Nano S Plus und Ledger Stax kompatibel sein. 📷 Ledger Recover ist nicht mit Ledger Nano S kompatibel.
* Das Problem ist, dass selbst wenn der Dienst nicht abonniert ist, das Firmware-Update hypothetisch erlauben würde, dass **geheime Wiederherstellungsphrase** die HW verlässt
* Ledger Nano S ist die einzige HW, die nicht mit dem Dienst kompatibel ist (nicht mehr im Ledger-Katalog).​
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EDIT: Wir wissen, dass die Verwendung von HW Vertrauen in die Instanz erfordert, die Hardware und Firmware herstellt;
auch „secret recovery phrase **leaving** device „kann niemals auf ledger Nano S möglich sein, da es nur signierte Transaktionen ausgibt
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>* the problem is that even if the service is not subscribed , the firmware update would hypotetically allow **secret recovery phrase** to leave the HW
As far as I understand hardware wallets, it is possible for the firmware to extract the seed phrase and/or private keys for every single wallet. That includes the original Ledger (some other reason is why it isn’t compatible with recover – or they are deciding not to support it on that device to force upgrades).
In other words, this has always been possible for all hardware wallets. What Ledger have really done wrong here is make statements that imply it wasn’t possible but, anyone who knew better, knew better.
Given it’s possible on all hardware wallets, the real question is… do you trust Ledger more than other hardware wallet providers?
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„the firmware update would hypotetically allow secret recovery phrase to leave the HW“
this is not related to Recover, this is related to the trust you have in the hardware wallet manufacturer (Ledger in this case). All devices that sign cryptocurrencies transactions need to access the secret recovery phrase.
When you buy a pre-built hardware wallet, you always have to trust at least the manufacturer (Ledger) and the chip provider (the secure micro division of ST Microelectronics). Thanks to the smartcard architecture we’re using, you do not need to trust more parties, which is different from most other hardware wallets, where the device is vulnerable to easy/trivial supply chain attacks before it reaches you, and physical attacks later.
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> the problem is that even if the service is not subscribed , the firmware update would hypotetically allow secret recovery phrase to leave the HW
hypothetically yes, but in reality, no:
The reality is that the secret recovery phrase cannot leave the ledger without the user approving it, because this function in the firmware, just like all other critical security-related functions (such as signing a transaction), is gated behind PIN and explicit approval by pressing ledger buttons.
Also, security researchers can snoop on USB and bluetooth communications to check that indeed the seed cannot „leave the ledger“ without your knowledge and approval. If they could show this happening, they would pocket a huge bounty from the Donjon. So it would not be in ledger’s interest to either do that (maliciously), or to allow this to happen due to a security vulnerability.
Just like, it is not in ledger’s interest to modify your transactions so that they would send your cryptos to some address you don’t control (hypothetically, ledger can totally change the destination address in all the crypto transfers you sign, but they never did that).
In addition, if you are concerned that this could happen, you can use a bip39 passphrase, as those are not backed-up by the Recover service.
Downvote me for giving correct info.
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Hi – The OS (firmware) update runs on the Secure Element. Downloading the latest OS update for your Ledger Nano X does not mean that your Secret Recovery Phrase can be extracted.
Updating the device’s firmware will not activate Ledger Recover service by Coincover. Recover remains disabled by default and cannot be activated without your explicit consent. Please review our white paper for an in-depth overview of the offering:
https://blog.ledger.com/Ledger-Recover-White-Paper/And check out our FAQ for more information:
https://support.ledger.com/hc/en-us/articles/9579368109597-Ledger-Recover-FAQs?docs=trueLet us know if you have any other questions.
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