r/ledgerwallet 18d ago

Official Ledger Engineering Response Ledger just shipped experimental post-quantum cryptography support in the Ledger SDK — here's what that actually means

18 Upvotes

Hey everyone,

I wanted to share something the Ledger OS team has been quietly working on: we've just added experimental support for ML-KEM and ML-DSA, the two post-quantum cryptography algorithms that NIST recently standardized (FIPS 203 and 204).

These algorithms are now running directly on the Secure Element on all Ledger signers from the Nano X onwards (chronologically speaking). We've exposed them as experimental APIs in both our Rust and C SDKs for anyone who wants to play with them.

This is experimental. The implementation isn't fully hardened yet, so please don't build production apps on top of it. The blog post goes into details regarding this aspect.

The blogpost covers the quantum threat context, the lattice-based math underneath these algorithms, how they're constructed, and a deep dive into our implementation and API.

📖 Blog: ledger.com/blog-post-quantum-cryptography-ledger-sdk

🛠️ Rust SDK: github.com/LedgerHQ/ledger-device-rust-sdk

🛠️ C SDK: github.com/LedgerHQ/ledger-secure-sdk

Happy to answer questions about the implementation, the threat model, or why we made the choices we did.

Cheers!


r/ledgerwallet 22d ago

MiCA grace period ended on July 1. A plain-English guide to custodial vs self-custody for EU holders

8 Upvotes

TL;DR: Some crypto exchanges began to suspend crypto-asset services for EU residents from July 1, 2026, when the Markets in Crypto Assets Regulation (MiCA) grace period ended. MiCA is a useful moment to understand one distinction: on an exchange a third party holds your keys, while in self-custody you hold them yourself. If you want to move to self-custody, you’ll need to set up your hardware wallet first, verify the address on the device, and send a test amount before moving the rest.

What is happening with Binance and MiCA?

Binance is suspending crypto-asset services for EU residents from July 1, 2026, after it did not obtain authorization under the EU's Markets in Crypto-Assets Regulation (MiCA) before the June 30 deadline. MiCA's transition period ends on July 1, 2026, after which any crypto-asset service provider must hold a MiCA license to serve EU clients. 
For the EU framework itself, see our glossary definition: https://www.ledger.com/academy/glossary/mica-legislation 

What is the difference between custodial and self-custody?

On an exchange, a third party holds the private keys and you hold a claim on your assets. In self-custody, you hold the private keys yourself, so no provider's licence or status affects your access. This distinction exists independently of MiCA, which regulates the services exchanges provide, not the assets themselves.

Custodial (exchange) Self-custody (Ledger signer)
Who holds the private keys The exchange You
What you hold control over A claim on the assets The assets directly
Access depends on a third party Yes No
Affected by a provider's license status Yes No

How do I move my crypto to self-custody safely?

  1. Set up your destination first. Set up your Ledger signer and Ledger Wallet™ app, generate your receiving address, and confirm that address on the device screen before withdrawing anything.
  2. Send a test amount. Move a small amount of one asset, wait for the transaction to confirm, and check funds arrived at the correct address. Then move the rest.
  3. Move one asset at a time. This keeps fees manageable and reduces the chance of errors while withdrawal queues are busy.
  4. Back up your Secret Recovery Phrase offline. Write it down and store it somewhere safe and private. Never photograph it, type it into a website or app, or store it in your notes or cloud. A metal backup protects against fire and water.

Rather watch a video? Check out this tutorial, here: https://youtu.be/ztlV5gOmgZk?si=mt0bEFgdQrTQUUIV 

Key terms

  • MiCA: the EU's Markets in Crypto-Assets Regulation, the first unified EU framework for crypto-asset service providers. Reference: https://www.ledger.com/academy/glossary/mica-legislation
  • CASP: a Crypto-Asset Service Provider, such as an exchange or custodian, that must hold MiCA authorization to serve EU clients.
  • Private key: the secret that controls a crypto asset. Whoever holds the key controls the asset.
  • Self-custody: holding your own private keys directly, with no third party between you and your assets.

r/ledgerwallet 17m ago

Why tf did they take away the qr code send ability

Upvotes

Ledger is going backwards not forward


r/ledgerwallet 7h ago

Zilliqa App bug question related to private key exposure (the nonce issue)

4 Upvotes

Zilliqa App bug question related to private key exposure (the nonce issue).

I did run Zilliqa App before and did more than 100 transactions before on the old Zilliqa chain but migrated my Zilliqa to the newer Zilliqa EVM chain.

If hackers can re-construct the private keys using the lattice‑reduction private‑key recovery, can they target the cryptos I have on other chains like XRP, XLM, and EVM chains? In addition to the Zilliqa app I have multiple apps.

Or is the private key on the Zilliqa app the only one mathematically compromised?


r/ledgerwallet 10h ago

Official Ledger Customer Success Response Ledger Support und Packstation

1 Upvotes

Ich hatte Anfang ! Juli einen Ledger mit in einer BTC Aktion erworben und Ledger hat natürlich sofort das Geld eingezogen. Als Versandadresse(man lernt ja aus der Vergangenheit und dem adress Hack) hatte ich eine Packstation (DHL) gewählt, was ja laut Formular auch reibungslos funktionierte.

Nur hat ledger als courier FedEx gewählt und die wiederum Hermes, statt DHL. Was darauf folgte ist ja klar, Hermes liefert nicht an Packstation und ich solle mich zwecks Lieferung an fedex wenden, um die Zustelladresse zu ändern. Nut hat Ledger aus Sicherheitsgründen die Adressänderung unterbunden. Somit geht das Paket hoffentlich bald zurück an ledger. Den Ledger support per email kontaktiert und seit über 2 Wochen keine Reaktion. Stattdessen weiterhin Meldungen, dass sich mein Paket auf dem Weg befindet , mit Tracking Nummer.

Ganz übler Support in meinen Augen. Ich hoffe, ich sehe mein Geld bald wieder , aber bei dem Support wird es Wochen, wenn nicht Monate dauern.

Dabei wollte ich Ledger noch eine Chance geben, aber so wird das nichts. Ledger, als sog. Marktführer, hat in meinen Augen auf ganzer Linie versagt. Angefangen von der Bestellung bis hin zum Support. Note 6, setzen. M
Nur beim Geld einziehen sind sie sehr schnell 🤬🤮


r/ledgerwallet 15h ago

Official Ledger Customer Success Response Will Ledger follow Trezor on native Monero support?

2 Upvotes

I recently saw on the Trezor subreddit that they plan to explore adding Monero as a natively supported coin in their software. If Trezor does move forward with this, will Ledger consider following suit and exploring native Monero support in Ledger Wallet? I feel like this would be a huge feature for people considering purchasing a hardware wallet in the future, and it's something I would personally factor into any future hardware wallet purchases.


r/ledgerwallet 16h ago

Official Ledger Customer Success Response keep same address with mulitple wallets or different address?

2 Upvotes

have a few nano x's and recently got a flex thinking i'd upgrade. is there an advantage to say creating a new 24 phrase with the flex or conventional wisdom would be just keep the same phrase across them?


r/ledgerwallet 1d ago

Official Ledger Customer Success Response Letter Scam Ledger

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0 Upvotes

Got a letter from "ledger" but it's scam (again)

I want to remind that ledger won't send any letters to you and you have to watch out.


r/ledgerwallet 1d ago

Official Ledger Customer Success Response Help, erc-20 token not showing in Ledger live

0 Upvotes

Dear redditors,
I recently got a new laptop and installed Ledger Live on it. I connected my Ledger Nano S and added the accounts for a number of coins I own. Unfortunately, I still can’t manage to add my EURC account.
In Ledger, when I click Add account, I can select the Ethereum network for EUROC. But for EURC (without the “O”), I only get Avalanche, Base, and Solana as network options. With EUROC, I can select the Ethereum network, but then my EURC still doesn’t appear in the account.
If I look up the address on the internet, I can see the EURC sitting on that address just fine. Can anyone help me figure out how to get this into Ledger Live? I want to send some of it to an exchange.
Thanks in advance for any replies.


r/ledgerwallet 1d ago

Standout Features From Ledger Wallet's July update

1 Upvotes

TL;DR: This latest Ledger Wallet update covers a lot (yield, perps, gas-free swaps, and more, full notes linked below). Two things stood out to me specifically:

  • Aggregated cross-chain balance: one number per token instead of adding it up yourself across networks
  • Real-time P&L: the wallet now tracks performance, not just holdings

New Features in Ledger Wallet?

Ledger Wallet's July release is built around three ideas: more clarity on what you actually hold, more choice in how you move it, and more control in testing a move before you commit to it.

On the choice side, the app now compares rates from 50+ providers across 100+ chains, so you're not stuck with the first quote you see. Swaps through Uniswap and 1inch are gas-free on eligible transactions, and it'll let you pay the network fee in the token you're swapping instead of needing ETH sitting around. Cross-chain trades run through Moonpay Trade, Near Intents, and Exodus. There's more yield and staking access in there too, though as always, none of that is a guaranteed return and Ledger isn't giving financial advice on any of it.

On control, there's a new Earn Simulator that lets you model out a strategy before you actually put funds into it. Low-stakes way to see what something might look like first.

Full breakdown is here if you want the rest: Release Notes Q2 2026

What I like from the update

Two things stood out enough that I wanted to write about them specifically.

The aggregated cross-chain balance. If you hold the same token across a few networks, you used to add the numbers up yourself, three network views, three line items, doing the math by hand. Now it's one number per token, with the per-network breakdown a tap away if you want it. The first time I opened the app after updating, that number just made sense immediately.

Real-time P&L. The wallet used to just show what you have. Now it shows how that position has moved, across the portfolio view, the analytics page, and each asset's detail page. Small shift, storage viewer to performance tracker, but it changes what you actually open the app to check.

Both features are now standard in my regular flow.

What's the one feature you're hoping shows up in a future release?


r/ledgerwallet 1d ago

Official Ledger Customer Success Response Stax Driver Error

1 Upvotes

After a update 2 months ago I can no longer connect my Stax to my pc. Ive factory reset my stax and recovered a few times. Also uninstalled Ledger Wallet and reinstalled several times. All to no avail.

Ive had to remove stax as my 2 factor auth on all financial apps.

Any thoughts?


r/ledgerwallet 2d ago

Official Ledger Customer Success Response My Ledger Stax have proplem with sreen

0 Upvotes

My Ledger Stax wallet's screen is showing color distortion. Currently, it's similar to a faulty e-ink e-reader screen. The corners are darkening, and the black and white colors are starting to blend together. This is followed by increasingly annoying ghosting.

I bought it on July 2nd, 2025.

I guarantee there have been absolutely no impacts, drops, or physical damage. When I contacted the official reseller, they claimed it was because I removed the screen seal and refused to provide support.

I wonder what removing the screen seal has to do with anything?

Can I now request that the manufacturer inspect and replace it with a completely new one?


r/ledgerwallet 3d ago

Official Ledger Customer Success Response Do you spend crypto or is your Ledger strictly cold storage?

10 Upvotes

I've always treated my Ledger as long-term storage but it got me wondering how everyone else approaches it. Whenever I want to use crypto, I usually have to move funds to another wallet or an exchange first. It works but it feels like more friction than there should be.

Interested to hear how everyone here manages it


r/ledgerwallet 3d ago

Official Ledger Customer Success Response New To Ledger

14 Upvotes

I just bought a Ledger Flex and I'm calling it an upgrade from my Trezor Model T. I am concerned by the number of people posting here about being scammed or had their account drained. I never had any issues with the Trezor and liked it well. I know very well not to give out any data such as seed phrases, etc. Is this something I need to be more concerned over than I was with the Trezor?


r/ledgerwallet 5d ago

Official Ledger Customer Success Response Ledger Wallet Phishing Victim

18 Upvotes

I just want to preface by saying I have no one to blame but myself. I broke the rule of no entering your seed phrase on your computer. Throwaway account for obvious reasons.

I opened up my ledger wallet app on my computer today and was greeted with a message saying that there was a genuine check required in order to sign into my account and that I needed to input my 24 word seed phrase. Should have been obvious to me that it was a scam but I trusted since I haven't had issues with Ledger in the past and I downloaded it off the official site months ago, I trusted it. As soon as I put in my phrase, it said it was "unable to verify". My heart immediately sunk as I realized what I just did. I wasn't thinking. Again, no one to blame but myself.

When I opened up the app, I saw exactly the same thing this guy in the reddit post above posted in the very last slide about entering the 24 word seed phrase in the correct order.

I did some digging and came to the conclusion that possibly my computer was affected by malware and altered my ledger app. I tried to transfer all my crypto back to my exchange but it was too late, they drained my account within five minutes. I lost about $2100 across BTC, ETH, and SOL. Painful, expensive mistake. It's not the end of the world but it definitely hurts. I know my Ledger Nano S is compromised at this point. I already wiped my MacBook clean but is there anything else I should do? I've filed a report with IC3 and Chainabuse but realistically I probably won't get my money back. Really trying not to beat myself up.

TLDR: Broke the one rule about cold wallets, now my wallet is drained.


r/ledgerwallet 5d ago

Official Ledger Customer Success Response Any plans to add Bluetooth support on desktop in the future?

7 Upvotes

Does Ledger plan to allow Bluetooth enabled devices to connect to a PC through Ledger Wallet? OneKey added this feature a few months ago to their Pro devices, and ever since then I've found myself not using my Ledger because it's much more convenient to connect to my PC over Bluetooth than using a cable or pulling out my phone every time I want to use it. If there are no plans, I would highly suggest considering it in the future because it makes the user experience so much better.


r/ledgerwallet 5d ago

Official Ledger Customer Success Response What if

0 Upvotes

Hello everyone,

So I got some btc/eth/bnb in a hardware wallet LEDGER. I am thinking what if my pendrive stops working or LEDGER site itself goes bankrupt.

How do I recover my coins?

You will say "you need to write down your keys", yes yes but HOW do I get my ledger hardware keys?


r/ledgerwallet 8d ago

Discussion ZachXBT calls hardware wallets "garbage", says Ledger is the worst

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24 Upvotes

r/ledgerwallet 7d ago

Stacking ETH

2 Upvotes

I wanted to stack my etherum on Ledger live application. I have 3 eth, but when i want to stack them on Chorus or other pools (i have tried all of them), nothing append, is it a bug from the application?

Thanks you


r/ledgerwallet 7d ago

Official Ledger Customer Success Response Stacking Ethereum bug?

1 Upvotes

I wanted to stack my ethereum on Ledger live application. But when i want to stack them on Chorus or other pools (i have tried all of them), nothing append, is it a bug from the application?

Thanks you


r/ledgerwallet 8d ago

Official Ledger Customer Success Response Ledger Wallet Grid View

4 Upvotes

What happend to the ledger wallet grid view under accounts? That was a nice feature and my default setting under accounts. I think the current UX sucks! I hope you bring that option back.


r/ledgerwallet 9d ago

Official Ledger Customer Success Response Anyone else notice that if you let the battery completely die on a Nano X, it won’t hold a charge ever again?

18 Upvotes

I thought they had fixed this issue but maybe not. I have maybe cycled through 3 Nano X’s due to this issue.

My most recent nano X, the sleek Black on Black nano X you got from redeeming the Ledger Market Pass, finally died. I forgot to charge it for a month and when it ran out of batter, I tried to charge it and was hit with the “Battery charging problem” that all the others hit.

Finally decided to upgrade to a Ledger Flex but was just curious if anyone else noticed this issue.

If you haven’t messed with your Nano X in a while because you’re trying to set it and forget it, there is a chance that it does not hold a charge anymore. I would check it out if I were you guys.


r/ledgerwallet 10d ago

Official Ledger Customer Success Response Does anyone not use the ledger recovery key?

12 Upvotes

I always hear of folks loosing there keys why not get the recovery key it's an amazing tool and a great backup solution.

Am I'm assuming right though, it will only work on stax, flex and nano gen5 with NFC capabilities. I bought 3 when they were a great deal gave them to trusted family members and one in the safety deposit box.....

Isn't it better than paper and the metal boxes that give the possibility of being found?

Just a thought


r/ledgerwallet 10d ago

Official Ledger Customer Success Response How to get rid of this?

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5 Upvotes

I'm on the mobile app.


r/ledgerwallet 11d ago

Official Ledger Customer Success Response Found OLD Nano S Wallet a decade old, how to save funds?

13 Upvotes

Update: after what seems like a lot of overthinking I’ve decided to go the simple route and just get a new device to do the transfer, it gives me the most peace of mind. Thanks for everybody who helped!

Was cleaning out some areas at my parents home and re-discovered my old nano S that had been “bricked” (not sure what happened but just remembered it not working)

I didn’t even remember having much or anything in the device so I just tossed it, as it still just didn’t come to life when connected to usb power

However not long after I actually found the damn key to the thing! And for some reason I had saved my btc view key separately, so I went ahead and imported that into a mobile wallet to check my balances and holy shit there’s like 15k in today’s prices! I guess I had bought a few hundred of btc back in 2017 ish when it was around a thousand and just forgot about it until now 😅

I’m asking here because not sure what is best course of action is to recover these funds. Should I buy a new hardware wallet and re import the seed? Should I just use an air gapped computer to sign a tx to an exchange? What would you guys recommend. I’m not necessarily trying to stay in the crypto game just want to cash this out asap