Security and Simplicity on a Hardware Wallet with #Bitcoin Only Firmware. Follow us on Nostr: #npub16s4cnphx2k7ndmlt9qmurkdrrulcammg3jxnz0f9c7dhepqg38zqpp4p24
Joined March 2024
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Most bitcoiners treat their hardware wallet like a cold storage address: set it and forget it.
But there's a point where you have to upgrade.
What got you there — and how long did yours last?
Drop your answer below 👇
Your input could shape the next-gen Keystone 🔥
Tell us what worked in the Keystone 3 Pro and what you want to see next.
Share your thoughts and get first access to future testing and interviews.
Take the survey now 👇
docs.google.com/forms/d/e/1F…
Keystone Hardware Wallet丨Bitcoin-Only retweeted
What if someone gets to your Keystone 3 Pro before you do? 👀
You’ve asked us this a lot, so we put it on camera 💥
Watch to the end and share it with anyone who’s asked you the same thing 🫡
Keystone Hardware Wallet丨Bitcoin-Only retweeted
An anti-tampering system would have prevented this supply chain attack.
Hard day for the industry 😞
You backed up your seed phrase. Set a passphrase. Did everything right.
Then someone got your device.
Maybe it was a theft.
Maybe you left it somewhere.
Maybe someone with the right tools and enough motivation decided your wallet was worth cracking open.
This is where the Keystone 3 Pro's PCI-grade anti-tamper system becomes the last thing standing between them and your keys.
The moment unauthorized access is detected, the circuitry wipes everything stored in the secure elements.
No keys. Nothing to extract.
And it doesn't need you to be there for it to work.
Even if your main battery is dead, a dedicated button battery keeps the protection running for up to 2 years. In normal use, that protection window stretches past 3 years.
Your wallet is built to lose itself before it gives anything up.
Keystone Hardware Wallet丨Bitcoin-Only retweeted
No es la más famosa, no es la que más gasta en publicidad, pero Keystone, es, para mi, una hardware wallet que merece la pena tener en el radar.
yo le daría un vistazo
En esta época, no me caso con ninguna, pero relación calidad/precio, se le puede tener en cuenta.
Market actions don't affect true Bitcoiners 🧘♂️
Stack your sats, self-custody with Keystone, and chill!
Keystone Hardware Wallet丨Bitcoin-Only retweeted
Happy 5th anniversary to @Wo_Bitcoin 🙌
Congrats on pulling off another great event where experts and enthusiasts came together to discuss and debate the Bitcoin topics that matter.
Proud to have been part of it. See you at WOB '27 ⚡️
🧡 ASÍ FUE WOB! '26 · 5º ANIVERSARIO
Tres días de talleres, debates y comunidad en Madrid. Gracias a los ponentes, a los sponsors, a los partners, a los voluntarios y a todos los que habéis estado este año y los cuatro anteriores.
Y esto sigue: las entradas para WOB '27 ya están disponibles.
🎟️ wobitcoin.org/#entradas
#WOB26 #WOB27 #WatchOutBitcoin #Bitcoin #Madrid
Keystone Hardware Wallet丨Bitcoin-Only retweeted
At @Wo_Bitcoin '26? Don't leave without this.
The WOB 5th Anniversary Edition Keystone 3 Pro is waiting for you.
Buy it and pick it up right at the event without sharing any personal data 🙌
🗣️ HOY, LA JORNADA PRINCIPAL DE WOB! '26
⏰ No llegues tarde: en la inauguración de las 10:00 tenemos una sorpresa 🎬
10:00 · Inauguración + sorpresa
10:10 · Bitcoin e IA: ¿arma o escudo?
11:35 · The trillion-dollar question
12:55 · El día después de Coldcard
16:30 · Nada que ocultar
18:00 · Bitcoin y las finanzas
19:35 · WoB Party
⚠️ Horarios sujetos a cambios: agenda actualizada en wobitcoin.org
📍 Espacio Pablo VI, Madrid
🎟️ wobitcoin.org/#entradas
#WOB26 #WatchOutBitcoin #Bitcoin #Madrid
Heading to Madrid for WOB! '26? This one's for you.
Map out your May 2–4 with the full schedule.
We're marking WOB's 5th Anniversary with the limited-edition Keystone 3 Pro. Pick one up while you're there.
Still need tickets? There's time. Get yours before they sell out.
⏳ MAÑANA EMPIEZA WOB! '26
Así serán los tres días:
📍 VIERNES 2
16:30 · 6 talleres a la vez
19:45 · Cocktail WoB (BIP)
📍 SÁBADO 3
10:00 · Inauguración + sorpresa 🎬
10:10 · Debates todo el día
19:35 · WoB Party (Running y BIP)
📍 DOMINGO 4
10:30 · Debates
16:30 · Proyectos Open Mic
19:30 · Cierre
Última llamada: quedan entradas. Normal 159€ · Running 229€ · BIP 489€ · Talleres 59€. Paga en euros o en Bitcoin, sin KYC.
⏰ El sábado no llegues tarde: en la inauguración de las 10:00 tenemos una sorpresa.
Puertas el viernes a las 15:30.
📅 2-4 oct · Espacio Pablo VI, Madrid
🎟️ wobitcoin.org/#entradas
#WOB26 #WatchOutBitcoin #Bitcoin #Madrid
Keystone Hardware Wallet丨Bitcoin-Only retweeted
Excited to be partnering with @Wo_Bitcoin for #WOB26!
To celebrate WOB's 5th Anniversary, we're bringing an exclusive Keystone 3 Pro to Madrid on May 2-4.
Very limited units only.
If you're going, you already know what to do ⚡️
🤝 QUIENES SUMAN A WOB! '26
Gracias a los partners:
Bitronics @BitronicsStore
Hash2Wear @hash2wear
Un Podcast sobre Bitcoin @alberto_mera
Prometea @prometeabtc
Bitvocation @bitvocation
Bleskomat @bleskomat
Bitcoinismo @BernabeuAdrian
IFEB @IFEBitcoin
Acelerando Bitcoin @acceleratingbtc
RoboSats @RoboSats
Instituto Juan de Mariana @juandemariana
Sparrow Wallet @SparrowWallet
Keystone @KeystoneWallet
Bitcoin para pobres @btc4pobres
Barcelona Cyphers Conference @bcc8333
Bitcoin Honey Bees @jozelito83
Wesatoshi Labs @we_satoshis
UFM Madrid @en_UFMMadrid
Seed Hypermedia @seedhypermedia
WalletScrutiny @WalletScrutiny
Bitcoin Only @rottenwheel1
Alba.City
Students For Liberty @sfliberty
Trezor @Trezor
LABITCONF @labitconf
WC2140
MadBitcoin @MadBitcoin_
Y a los media partners:
CriptoTendencias @cripto_t
CriptoNoticias @CriptoNoticias
Crypto.news @cryptodotnews
Thrilld @ThrilldLabs
Diario Bitcoin @DiarioBitcoin
📅 2-4 oct · Madrid
🎟️ Entradas: wobitcoin.org/#entradas
#WOB26 #Bitcoin #Madrid #Partners
1/
Bitcoin natively supports multi-sig. No special wallet needed.
But our BTC-only firmware takes it further, making multi-sig safer and more seamless for serious Bitcoin users.
Here's what that looks like 👇
3/
When you sign a multi-sig transaction on Keystone, you see everything:
✅ Signing status
✅ Amount and fees
✅ From and To addresses
✅ Full xPub details
Small-screen wallets cut corners. We don't.
4/
Still using a signing device that's built for everything?
Time to switch to Keystone BTC-only for a rich, distraction-free Bitcoin experience!
Grab one today:
keyst.one/btc-only
Don't sleep on this firmware update ⚡️
Keystone 3 Pro V3.1.0 is live for BTC users.
→ Better seed backup reminders during firmware updates & seed phrase generation
Skipping your seed backup is not an option in self-custody.
Update today and tell us which feature to add next.
Multi-coin firmware carries code for every coin it supports, whether you hold them or not 🤦♂️
Keystone's BTC-only firmware drops all of that ⚡️
Separate codebase, smaller attack surface, deeper Bitcoin features.
Full breakdown here 👇
If you only hold Bitcoin, why is your signing device running code written for coins you'll never own?
That's not a philosophical question.
Because multi-coin firmware has to maintain its own protocol logic, cryptographic signing rules, and transaction construction for every coin it supports.
Each addition brings more code that needs to be reviewed, maintained, and kept secure, whether you use those coins or not. You're carrying that overhead by default.
Keystone's BTC-only firmware serves as the best alternative. Not a trimmed version of the multi-coin build, but a completely separate codebase written from scratch for Bitcoin.
When the codebase is smaller and purpose-built, security researchers can audit more of it and audit it properly. Fewer lines of code means fewer places for vulnerabilities to go unnoticed between review cycles, which makes for a structurally sounder security foundation overall.
BTC-only users also get access to advanced Bitcoin features that multi-coin firmware doesn't offer.
All three address formats:
- P2PKH (legacy), P2SH-P2WPKH (nested segwit), and P2WPKH (native segwit).
- PSBT (BIP-174) for air-gapped transaction signing via QR codes.
- Native multisig support, coinjoin, and the ability to connect your wallet to your own Bitcoin node for fully independent chain verification.
Plus, the wallet compatibility covers Sparrow, Electrum, BlueWallet, Specter, and everything a serious Bitcoin setup actually runs on.
Switch to BTC-only, and you're not giving anything up.
You're getting a leaner security foundation and a deeper Bitcoin feature set in the same move.
Watch out, Bitcoin! event is almost here ⚡️
Oct 2–4 in Madrid, with a stacked lineup of speakers.
Grab your spot before it's gone.
P.S. WOB-branded Keystones are dropping at the event too. Don't miss out.
🔁 EL CARTEL DE WOB! '26
Todos los ponentes anunciados hasta hoy:
· Cris Carrascosa
· Alberto Mera
· Daniel Baeza
· Stark Privacy
· Javier Maestre
· Álvaro D. María
· Nick Anthony
· Karliatto
· Yonat Vaks
· Franco Amati
· Lunaticoin
· Jordi Llonch Esteve
· Guillaume Bajczman
· Chavo
· Luis Miguel Ortiz
· José Luis Landabaso
· José Antonio Bravo
· Laura Guzmán
📅 2-4 oct · Madrid
🎟️ Entradas: wobitcoin.org/#entradas
#WOB26 #WatchOutBitcoin #Bitcoin #Madrid #Ponentes #Speakers
If you only hold Bitcoin, why is your signing device running code written for coins you'll never own?
That's not a philosophical question.
Because multi-coin firmware has to maintain its own protocol logic, cryptographic signing rules, and transaction construction for every coin it supports.
Each addition brings more code that needs to be reviewed, maintained, and kept secure, whether you use those coins or not. You're carrying that overhead by default.
Keystone's BTC-only firmware serves as the best alternative. Not a trimmed version of the multi-coin build, but a completely separate codebase written from scratch for Bitcoin.
When the codebase is smaller and purpose-built, security researchers can audit more of it and audit it properly. Fewer lines of code means fewer places for vulnerabilities to go unnoticed between review cycles, which makes for a structurally sounder security foundation overall.
BTC-only users also get access to advanced Bitcoin features that multi-coin firmware doesn't offer.
All three address formats:
- P2PKH (legacy), P2SH-P2WPKH (nested segwit), and P2WPKH (native segwit).
- PSBT (BIP-174) for air-gapped transaction signing via QR codes.
- Native multisig support, coinjoin, and the ability to connect your wallet to your own Bitcoin node for fully independent chain verification.
Plus, the wallet compatibility covers Sparrow, Electrum, BlueWallet, Specter, and everything a serious Bitcoin setup actually runs on.
Switch to BTC-only, and you're not giving anything up.
You're getting a leaner security foundation and a deeper Bitcoin feature set in the same move.
Keystone Hardware Wallet丨Bitcoin-Only retweeted
Happy to support this initiative 🤝
Every time a serious bug surfaces, users' funds and years of builders' work are at stake.
Responsible disclosure exists to protect them, & not just vendors' reputation.
Find it quietly, fix it fast, update users, then talk.
That order saves people.
Glad to make this the industry standard together. We will hold up our end.
Respect to @P3b7_ & all our industry peers 🤝
Keystone wholeheartedly supports this 🤝
We've always believed security is stronger with multiple experts on it, not just one team. That's part of why we open-sourced our code, so researchers worldwide can scrutinize it, find gaps, and help us improve.
It's also how we've built partnerships with @SlowMist_Team, @BlockSecTeam, @Offside_Labs, @zknoxhq & @OneKey_Anzen to harden our codebase, and in every one of those, responsible disclosure made the difference. It gave us time to ship fixes and get our users updated before anything went public.
Now, AI is lowering the barrier to security research, and more people are finding bugs than ever. That's great for the community, but how that information gets handled matters a lot more when people's funds and years of builders' work are on the line.
That's exactly why responsible disclosure is a must.
We're glad to join our industry peers in making this the standard, and we'll hold up our end.
Respect to @P3b7_ for stepping up and leading this 🤝