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Danny @Trezor
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Danny @Trezor
@Dantoshi
CCO @Trezor | Self custody Maxi | CE Sales & Marketing | ₿itcoin & Crypto | Long Freedom & Empowering Independence
North Pole Katılım Nisan 2018
1.4K Takip Edilen1.5K Takipçiler
Danny @Trezor retweetledi
Danny @Trezor retweetledi
Immer neue EU-Regeln nehmen Bitcoin und Krypto ins Visier. Trezor-CEO Matěj Žák spricht über die wachsende Bedeutung von Self Custody – und ein Backup-Modell mit überraschender Harry-Potter-Verbindung. Jetzt mehr lesen👇 #Echobox=1783789743" target="_blank" rel="nofollow noopener">btc-echo.de/news/bitcoins-…
Deutsch
Danny @Trezor retweetledi
Why 0.01 Bitcoin Is The New $1,000,000?
Quantum computers can't crack Bitcoin today, so why is @Trezor 's CTO telling the industry to prepare anyway? 👇
Speaking at BTC Prague 2026, Tomáš Sušánka @tsusanka makes the case for quantum-resistant Bitcoin without the fear mongering. Qubit counts have climbed from 5 to over 1,100 since 2016, multiple hardware approaches are now in serious development, and two new papers suggest breaking Bitcoin's cryptography may take far fewer qubits than the 8 to 10 million once assumed, with one estimate as low as 10,000. He works through the strongest counterarguments one by one, then lands on the real issue: this is an asymmetric risk, the same logic that makes you wear a seatbelt. Sušánka doesn't expect a relevant quantum computer within 10 years, but with roughly 6 to 7 million BTC already exposed, he argues Bitcoin should adopt post-quantum addresses now, out of precaution rather than fear.
English
Hey @Dantoshi do you or someone from your team want to come chat with me and my private Skool community about Trezor products and hardware wallets this month?
We’d love to have Trezor in there!
We bring in industry experts every month.
We’ve had Ledger and Tangem already.
We need the OG in there
English
I have questions:
Why does Ledger not post this on their main account?
Why am I getting spam bots on my YouTube channel from accounts created 17 minutes ago commenting about this?
Why is every “media company” posting the same AI slop about this “news”?
Something is off.
Charles Guillemet@P3b7_
💥One Check, One Laser, Every Card: The Tangem Immutability Trap. The @DonjonLedger just published research worth stating plainly. With a single laser pulse the Ledger Donjon team faults one conditional check in the firmware of a Tangem card and resets the password to a value of its choosing. No existing password, backup card, or recovery feature needed. Once reset, the attacker is able to sign anything and can potentially drain the user’s wallet. To be precise about the threat model: this attack requires physical possession of the card, invasive chip opening, lab-grade fault-injection equipment, our own setup costs roughly $250,000, and genuine technical expertise. That puts it well beyond the reach of an opportunistic thief, but comfortably within the capabilities of a serious lab. Both things can be true at the same time. Why one pulse is enough: the recovery path depends on a single yes/no check, “is this card in recovery state?”, and a pulse is simply a precisely timed electrical disturbance designed to make the chip misread that decision at the critical moment. Because there is no redundant check and no penalty for repeated SetPin attempts, one successful disturbance is enough. The chip’s countermeasures are formidable, but they cannot protect the one bit the firmware chose to trust. The uncomfortable part: it cannot be patched. Tangem cards have no firmware update mechanism. The vulnerability was disclosed on February 10th, 2026. There is no fix coming, because there is no channel to deliver one. Tangem presents immutable firmware as a security feature. Call it what it is: a trade-off. "We cannot change the firmware" is a strong story right up until the firmware is wrong. Then the same property that protected you guarantees you can never be protected again. This research did not create that reality. It made it visible. What a user can do, since there is no patch: this attack requires physical possession of the card and invasive lab work, so it cannot be done covertly. The practical risk is a lost or stolen card in the hands of a capable attacker. If the card stays in your possession, there is no reason to assume compromise. If you have doubt, or if your threat model requires a higher level of assurance, treat the funds as compromised and move them to a new secure set up. This was published in line with Ledger Donjon’s responsible disclosure process. When a vulnerability cannot be patched, the next responsibility is to inform users clearly and widely, so they can make their own informed decisions, especially here where the vulnerability can not be exploited remotely. The bigger lesson is not about one product. Security is never static, and systems should be designed with human error and future failure in mind. You should not have to blindly trust that yesterday’s assumptions still hold. You should be able to verify, adapt, and recover when they do not. Design for the day you are wrong, because eventually, you will be. Full write-up from Baptistin Boilot, Ledger Donjon. Stay safe. Stay honest about your trust assumptions. donjon.ledger.com/blog/bypassing…
English
Three years ago, @RyderWallet was just an idea.
Today, it won a Red Dot Design Award.
Still feels surreal.
English
Danny @Trezor retweetledi
Sat down with @Dantoshi, CCO of @Trezor, at @BTCPrague .
Over 12 years,
2M+ customers,
zero VC money,
One of the longest running successful crypto startups!
More insights on how they did it, in the full conversation below 👇
English
Nothing reminds me why I hate competitive comparison tables as a product marketer more than watching hardware wallet companies publicly fight over whose is more misleading.
On that note, here's my all-time favorite "product comparison table."
English
Danny @Trezor retweetledi
💥One Check, One Laser, Every Card: The Tangem Immutability Trap.
The @DonjonLedger just published research worth stating plainly.
With a single laser pulse the Ledger Donjon team faults one conditional check in the firmware of a Tangem card and resets the password to a value of its choosing. No existing password, backup card, or recovery feature needed. Once reset, the attacker is able to sign anything and can potentially drain the user’s wallet.
To be precise about the threat model: this attack requires physical possession of the card, invasive chip opening, lab-grade fault-injection equipment, our own setup costs roughly $250,000, and genuine technical expertise. That puts it well beyond the reach of an opportunistic thief, but comfortably within the capabilities of a serious lab. Both things can be true at the same time.
Why one pulse is enough: the recovery path depends on a single yes/no check, “is this card in recovery state?”, and a pulse is simply a precisely timed electrical disturbance designed to make the chip misread that decision at the critical moment. Because there is no redundant check and no penalty for repeated SetPin attempts, one successful disturbance is enough. The chip’s countermeasures are formidable, but they cannot protect the one bit the firmware chose to trust.
The uncomfortable part: it cannot be patched. Tangem cards have no firmware update mechanism. The vulnerability was disclosed on February 10th, 2026. There is no fix coming, because there is no channel to deliver one.
Tangem presents immutable firmware as a security feature. Call it what it is: a trade-off. "We cannot change the firmware" is a strong story right up until the firmware is wrong. Then the same property that protected you guarantees you can never be protected again. This research did not create that reality. It made it visible.
What a user can do, since there is no patch: this attack requires physical possession of the card and invasive lab work, so it cannot be done covertly. The practical risk is a lost or stolen card in the hands of a capable attacker. If the card stays in your possession, there is no reason to assume compromise. If you have doubt, or if your threat model requires a higher level of assurance, treat the funds as compromised and move them to a new secure set up.
This was published in line with Ledger Donjon’s responsible disclosure process. When a vulnerability cannot be patched, the next responsibility is to inform users clearly and widely, so they can make their own informed decisions, especially here where the vulnerability can not be exploited remotely.
The bigger lesson is not about one product. Security is never static, and systems should be designed with human error and future failure in mind. You should not have to blindly trust that yesterday’s assumptions still hold. You should be able to verify, adapt, and recover when they do not. Design for the day you are wrong, because eventually, you will be.
Full write-up from Baptistin Boilot, Ledger Donjon.
Stay safe. Stay honest about your trust assumptions.
donjon.ledger.com/blog/bypassing…
English
@JanaCryptoQueen @Trezor Straight into secure self custody, no exchange needed 👊🤝
English
Took an all-nighter but the wallet quiz is now live 📜
Thank you for all suggestions in the previous post 🙏
Let me know what kind of "wallet person" you got as a result from the quiz 😁
Nordic@NordicMiner
I'm creating a hardware wallet quiz on my site 📜 Before I finalize the quiz questions, I'd love to hear your suggestions to help shape them! 🙏 What do you think are some of the most important things you should ask yourself before choosing a hardware wallet?
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Danny @Trezor retweetledi
Danny @Trezor retweetledi
Suite Sync is now live in Trezor Suite on desktop & mobile. 🔄
Label once, sync everywhere. Labels are encrypted on your device, tied to your wallet backup, and synced without Google Drive, Dropbox, or any third-party account.
More info 👇
trezor.io/blog/news/perm…
English
Danny @Trezor retweetledi
June has been an amazing month for Bitcoin Education in the Global South! Here's what we've been up to:
1) We published Seeding Bitcoin, a short film about Bitcoin adoption in Africa
x.com/TrezorAcademy/…
Trezor Academy@TrezorAcademy
People ask why we do this. Here's the answer. A documentary on Bitcoin education in Africa, made with @Trezor.
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