Bitkey vs. a spear phishing attack
Phishing attempts happen all the time. But you can't give up what you don't have.
Welcome to the Bitkey development blog.
Bitkey is the safe, easy way to own and manage bitcoin. It’s a mobile app, hardware device, and a set of recovery tools, for simple, secure self-custody.
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Highlighted Posts
The end of seed phrase scams
The easiest way to avoid seed phrase scams? Don’t use a seed phrase. Since the beginning of time, scammers have found ways to turn the misfortune of others into a payday. Unfortunately, bitcoin isn’t immune. Like cash, whoever holds it owns it, a fact that makes it a...
Bitcoiners: Natalie Brunell
Coin Stories host wants you to know that bitcoin is for everyone. (And you’re still very early.) “Fix the money, fix the world” means a lot of things to a lot of people. For Natalie Brunell, host of Coin Stories and author of Bitcoin is for Everyone, it means...
Not our keys, not our business
How Bitkey used Chain Code Delegation to create the first private collaborative bitcoin wallet. Starting today, Bitkey users can enjoy the safety of collaborative multisig without giving up privacy around their wallet balances or transaction history. It’s a first for multisig wallets—and another step toward making self-custody accessible...
Chain Code Delegation: Improving privacy in collaborative multisig
Collaborative custody and multisig setups have long faced a tradeoff between safety and privacy. Sharing a key with a third party—whether for recovery, policy enforcement, or convenience—has traditionally meant giving that party visibility into a user’s wallet balance and transaction history. A new proposal called Chain Code...
Hardware wallets are not enough
Hardware is a critical component of self custody. But it only solves part of the problem. We all know the mantra: Not your keys, not your coins. It’s long been the rallying cry for bitcoiners to move their keys off exchange into self-custody, a posture that means nobody but...
Introducing Security hub — your Bitkey security setup, all in one place
Arguably the most challenging part of bitcoin self custody is the “self” part–the part that means at some level, you’re responsible for keeping your wallet secure. Bitkey’s security architecture already does a lot to remove the risks of human error from the equation, with multiple routes to...
Seedless is safer
Losing your seed phrase is perhaps a bitcoiner’s biggest fear. And for good reason. When seed phrases came into existence more than a decade ago, they were a vast improvement in user experience compared to managing raw private keys—strings of hex buried in files or password managers. They...
What do you mean, ‘There’s no seed phrase’?
Three routes to recovery are better than one high-value hide-a-key. You know that spare key your neighbor has, hidden under the mat or a fake rock or in a combination lockbox, in case they get locked out of their home? That’s basically what a seed phrase is: a high-value...
Building better bitcoin self-custody
Bitkey roadmap update, April 2025 Bitcoin custody has always been defined by tradeoffs. Privacy, safety, and usability have been inextricably linked, forcing users to choose which qualities matter most to them, index on those qualities, and put up with compromise on the others. Most single-sig hardware offers good privacy, but...
Bitkey’s inheritance feature: A technical deep dive
Bitkey’s inheritance feature makes it easy and secure for benefactors to not only pass on bitcoin to a friend or loved one, but to also give beneficiaries the same security, usability, and recovery tools that Bitkey offers. Built on top of Bitkey’s strong foundation of recovery tools, inheritance...
Inheritance is live. Here’s how it works.
Bitkey’s inheritance feature is the best way to ensure your loved ones get your coins when you’re gone. For most legacy financial instruments–your stocks, IRA, 401k, even your bank account–there’s a pretty clear process for getting what’s yours to your loved ones when you...
Hardware security for peace of mind
Trusting hardware you buy online or in retail As the team expands where customers can purchase Bitkey, it’s a good time to share how we think about the security of the hardware. Specifically, customers want to know whether buying a Bitkey from a retailer introduces new hardware tampering risks....
Bitkey now for sale online at Amazon and Best Buy
Giving customer more options to buy Bitkey via trusted partners Just in time for the holiday season, our US customers can now purchase Bitkey online at both Amazon and Best Buy. Since launch, our aim has been to widen the pie of bitcoin users by giving access to the simplest...
Introducing inheritance, simplifying the transfer of bitcoin to future generations
We built Bitkey to be a device worthy of holding your bitcoin. That means it’s made to protect your funds today and into the future. And now, with inheritance, Bitkey makes your bitcoin a multi-generational asset. Inheritance allows you to designate a beneficiary of your Bitkey to ensure your...
Most Recent Posts
Bitkey’s inheritance feature: A technical deep dive
Bitkey’s inheritance feature makes it easy and secure for benefactors to not only pass on bitcoin to a friend or loved one, but to also give beneficiaries the same security, usability, and recovery tools that Bitkey offers. Built on top of Bitkey’s strong foundation of recovery tools, inheritance...
Inheritance is live. Here’s how it works.
Bitkey’s inheritance feature is the best way to ensure your loved ones get your coins when you’re gone. For most legacy financial instruments–your stocks, IRA, 401k, even your bank account–there’s a pretty clear process for getting what’s yours to your loved ones when you...
Hardware security for peace of mind
Trusting hardware you buy online or in retail As the team expands where customers can purchase Bitkey, it’s a good time to share how we think about the security of the hardware. Specifically, customers want to know whether buying a Bitkey from a retailer introduces new hardware tampering risks....
Bitkey now for sale online at Amazon and Best Buy
Giving customer more options to buy Bitkey via trusted partners Just in time for the holiday season, our US customers can now purchase Bitkey online at both Amazon and Best Buy. Since launch, our aim has been to widen the pie of bitcoin users by giving access to the simplest...
Introducing inheritance, simplifying the transfer of bitcoin to future generations
We built Bitkey to be a device worthy of holding your bitcoin. That means it’s made to protect your funds today and into the future. And now, with inheritance, Bitkey makes your bitcoin a multi-generational asset. Inheritance allows you to designate a beneficiary of your Bitkey to ensure your...
Welcoming Blockchain.com and Azteco as Bitkey Partners
You can now buy bitcoin through Blockchain.com or redeem your Azteco bitcoin voucher directly into Bitkey Following our recent announcement that customers will be able to sell bitcoin through partner integrations, we’re back with more partners available in the Bitkey app. First, Bitkey customers will now be able...
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