Ledger (@Ledger) — posts, photos & videos

@Ledger

Oct 9

Swap smarter, not harder, and stay secure 🔒

@near_intents is available via @SwapKitPowered in Ledger Wallet.

With @near_intents, you submit your goal (or, "intent"), which is then executed by either human or AI agents across chains like ETH, BTC, NEAR, and more.

It’s Near's robust swapping infrastructure paired with Ledger’s uncompromised security, allowing you to make decentralized cross chain swaps with confidence.

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@Ledger reposted

Charles Guillemet

@P3b7_

Impressive work from the recent math drops, the unit-distance counterexample, the sub-n log n multiplication result, and the 3SUM/APSP improvements are genuinely humbling for prior intuitions.

That said, treating a classical ECDSA break in months as a planning baseline still looks like FUD.

A practical private-key recovery attack on secp256k1 (or similar curves) on available hardware would not stay confined to Bitcoin and Ethereum. It would compromise TLS, code signing, most banking systems, and a large fraction of deployed public-key infrastructure at once.

Hash-based schemes are attractive precisely because they minimize algebraic structure, but the same loss of mathematical intuition that motivates caution on curves also applies to hashes ;-)

A calm hygiene improvement (avoiding address reuse after the first signature) is reasonable for large holders, and all good wallets incentivizes using new addresses.

But calling for a “mass migration” would create operational mistakes that lose funds with higher probability than the scenario being mitigated.

We already have a Post Quantum migration to execute, let's not add more confusion.

Justin Drake@drakefjustin · Oct 7

Today I call upon the blockchain industry to calmly begin planning for "bunker mode". My personal recommendation is to set in motion a controlled mass migration of assets to fresh addresses, i.e. addresses whose pubkeys remain hidden behind a hash.

Holders, starting with large and sophisticated ones, should consider moving the bulk of their funds to addresses that have never signed a transaction. And when they do sign one, they should also move remaining funds to a new address (possibly generated from the same seed phrase).

Don't rush. While I believe there is cause for action a rushed migration would do more harm than good. Don't panic either. Moving assets to protected addresses is a simple, preventative step which does not require new cryptography or new wallets.

IMO it is now reasonable to brace for the possibility that ECDSA breaks before qday, in the worst case in months not years. By "break" I mean fast private key recovery (e.g. in one week) on available hardware (e.g. a large GPU cluster).

Recent days have been humbling for human mathematical intuition. Long-held, unquestioned hypotheses have fallen. This includes the n log(n) bound for integer multiplication and the 3SUM conjecture. In hindsight, May's unexpected disproof of the Erdős unit distance conjecture was our warning shot.

Yesterday's OpenAI drop made it clear that mathematical superintelligence is upon us. They say there are weeks where decades happen. We are about to live through weeks where centuries of mathematical progress happen. Could our magic 64-byte ECDSA signatures be too good to be true? Was it just security through obscurity all this time?

Elliptic curves feel especially vulnerable to superintelligence. Curves carry rich structure, with room for fancy tricks like Schoof, Frobenius, pairings. (By contrast, hashes are designed to minimise algebraic structure.)

Separately, as Ewin Tang can attest, an efficient quantum algorithm sometimes foreshadows an efficient classical one. We should be open to the possibility of a classical counterpart to Shor that breaks elliptic curves and RSA at once.

Also noteworthy is the striking under-representation of cryptographic breakthroughs among the 722 mathematical results OpenAI published. I've witnessed first-hand the US government censoring academic quantum cryptanalysis results. Backroom interventionism is my base case.

I urge large, sophisticated actors to lead by example. Project11's "risq list" (bitcoin-risq-list.projecteleven[.]com) is a great tracker of exposed BTC pubkeys. Binance, Bitbank, Robinhood, Bitfinex, and Tether have an opportunity to harden their cold storage. Next month I'll address institutions in London in a live Q&A (forum.ethereuminstitutional[.]org/london-2026).

Again, please do not rush. Wallets holding under 50 BTC enjoy partial cover from "Satoshi's shield", i.e. his 20K exposed addresses that hold 50 BTC each. Load-bearing signers like oracles and L2 security councils should consider rotating ECDSA pubkeys with every signed message and/or multi-signing with a hash-based schemes like SPHINCS.

Exiting bunker mode safely will require post-AI cryptography. My inclination is to go all-in on hash-based cryptography and avoid structured mathematical assumptions entirely, whether from curves, lattices, or isogenies. A single battle-tested hash (e.g. from the SHA or BLAKE families) yields plausible post-AI security.

The Ethereum roadmap on strawmap[.]org fully embraces hash-based cryptography with end-to-end formal verification as a response to the quantum threat. Those timelines must now be revisited and accelerated in light of mathematical superintelligence. I'll be pushing for maximum defensive acceleration.

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@Ledger

Quick reminder: Buying digital assets in Ledger Wallet has got a more familiar payment option.

Eligible US customers can now use their @CashApp balance at checkout when buying digital assets with @moonpay.

Buy with Ledger Wallet™ and approve with your Ledger signer. Free from compromise

MoonPay 🟣@moonpay · Aug 27

Cash App Pay is now available through MoonPay via @Ledger Wallet™ 🔐

eligible US customers can use their @CashApp balance at checkout when buying digital assets with MoonPay!

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@Ledger reposted

Pascal Gauthier @Ledger

@_pgauthier

At @Ledger Op3n, our global innovation event, we will reveal the next chapter of security and privacy in the AI and Quantum era.

Digital security is the prerequisite of digital freedom.

Your money, your identity, your passkeys are all digital. And now, AI agents can act on your behalf, with access to all of it. Yet most of our digital lives run on devices built to connect and share, not to keep things secure and private.

Proving who we are, what we approve, what we sign can't rely on software alone. Software can be attacked, altered, compromised. When something really matters, we need something we can hold and trust: a secure chip, a trusted screen, a button only a human can press.

As tokenization and AI transform the digital world, hardware is more essential than ever. It's the Revenge of the Atoms: when something really matters, the final approval needs to happen on a secure device, in your hand, under your control.

That's why Ledger exists. Because ownership and security matter in the digital world just as much as they do in the physical one. Not something a company gives back to you on its terms.

12 years. Zero hack. That track record gave us the legitimacy to go beyond crypto.

Save your seat for Ledger Op3n. Link in the first comment.

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@Ledger

Students at Op3n is back. An initiative by Ledger N3XT.

Oct 15–16: 31 students from 13 university blockchain clubs at Ledger HQ, Paris.

Private hackathon on the Ledger stack, Ledger Donjon workshop, panels with industry leaders and real Parisian experiences.

2 packed days 🧵

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@Ledger

The next era of digital ownership gets revealed live from Paris.

Ledger Op3n 2026. October 15.

x.com/i/broadcasts/1…

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@Ledger reposted

nabu

@nabu_lines

let the agent cook. you keep the keys.

black or matcha green?

Ledger@Ledger · Oct 7

Keep your Bitcoin. Get your liquidity.

Expand your buying power with Crypto Loan, powered by @Morpho with @yield_xyz via Ledger Wallet™.

Take a stablecoin loan, backed by your wrapped Bitcoin. Keep your stack, keep your upside.

Every step Clear Signed on your Ledger signer.

Rolling out now - keep an eye on your Ledger Wallet app.

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@Ledger

left is telling you the result. right is telling you the plan.

which one manages your money?

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@Ledger reposted

Yield.xyz

@yield_xyz

Keep your Bitcoin exposure while accessing stablecoin liquidity.

Crypto Loan lets eligible users borrow $USDC or $USDT against cbBTC or wBTC via Ledger Wallet™.

Powered by @Morpho and integrated via the Yield API.

Ledger@Ledger · Oct 7

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@Ledger reposted

Morpho 🦋

@Morpho

Crypto Loan via @Ledger Wallet™, powered by Morpho

Ledger users can now borrow against wrapped BTC, all within self-custody.

Morpho is Ledger's infrastructure of choice to become an all-in-one platform for digital assets: first with Stablecoin Earn, and now Crypto Loan.

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@Ledger

Crypto Loans just hit Ledger Wallet 🤝

Morpho 🦋@Morpho · Oct 7

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@Ledger

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@Ledger

It's the best day of the month: Happy BuyDay!

0 processing fees for the next 24 hours when you buy digital assets in the Ledger Wallet™ app. Choose your provider (@moonpay, @coinify, Sardine, @btcdirect, @BanxaOfficial, & @TopperbyUphold), buy directly through the app, and keep your keys offline on your Ledger signer. True digital ownership. Free from compromise.

Please note that this promo is not available in the UK.

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@Ledger

Ledger Nano Gen5 @spurs Edition. Available now.

Only 250 made worldwide. A piece of NBA history you can actually use.

Available at @token2049 Singapore today and online in selected regions.

Are you locked in? Grab yours now👇

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@Ledger

Have you set a reminder for the Ledger Op3n live stream yet?

There's only one right answer by the way

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