Casa

Casa helps you take control of your own keys to secure your bitcoin. For support, email [email protected]

Public Key

npub1casacasahesdrpu6npfth2t0ae37a2cdwwg3c4fkt30v7gzffx3q7wtzdc

NIP-05 Address

Profile Code

nprofile1qqsvwcwuwcwmucx3s7dfs54m49h7uclw4vxh8ygu25m9chk0ypy5ngspp4mhxue69uhkummn9ekx7mqpr3mhxue69uhkummnw3ezucnfw33k76twv4ezuum0vd5kzmqjrzznf

Publishing to

nos.lol

nostr.bitcoiner.social

Author Public Key

npub1casacasahesdrpu6npfth2t0ae37a2cdwwg3c4fkt30v7gzffx3q7wtzdc

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Last Notes

2026-08-11 21:41:50 CEST

We've had clankers doing our pentesting for several months now and are quite pleased with the results. Here's an overview of how we're auditing code at Casa.
https://blog.casa.io/how-built-reliable-ai-pentest/

2026-05-27 12:09:23 CEST

Social engineering attacks against Bitcoiners are on the rise and Casa is stepping up to meet the challenge!
https://nostr.download/3924d19d1111768e404e9a2a94839dbb235937320a6fc787ebfca4e104b20a21.mp4

2025-12-01 17:11:18 CET

Casa has passed a formal third party audit to prove that we have achieved SOC2 Type II compliance!
This is another milestone in our commitment to uphold the highest standards for security and operational excellence.
https://blog.casa.io/announcing-soc-2-type-ii-compliance/

2025-11-25 16:58:26 CET

Today marks the 1 year anniversary since Casa upgraded our software development lifecycle to a developer-led release process! 🥳
By removing bottlenecks from our QA team and Infrastructure team, we have been able to ship improvements faster than ever. 💪🏼

2025-04-01 18:17:28 CEST

We were going to make an April Fools Joke today, but then we remembered the world is still using fiat and that’s funny enough.

2025-03-28 16:52:21 CET

If AI makes many things abundant, it's all the more important to secure what's valuable to you, starting with your bitcoin.
We believe that future will be protected with private keys, and you can hold them yourself without fear.
Onward 🔑🫡

2025-03-24 18:32:17 CET

NEW: You can now create a duplicate of your YubiKey inside the Casa vault for sakekeeping.
Redundancy is just one way Casa gives you peace of mind.
Follow the instructions here: https://support.casa.io/knowledge/how-to-duplicate-your-yubikey

2025-03-21 14:32:35 CET

Your family's last memory of you shouldn't be that you left them a treasure map to your bitcoin 😵‍💫
Casa Inheritance fixes this. It's easy, secure, and included with every vault. Learn more below.
https://casa.io/inheritance

2025-03-19 14:36:59 CET

- reply

The big thing to keep them in access-controlled location (e.g. safety deposit box, file cabinet with lock). And for hardware devices, it's good to keep them in a climate-controlled location away from excess moisture.

2025-03-17 21:29:32 CET

Concerned about getting physically targeted for your bitcoin? Here’s a quick overview from @npub17u5…t4tp to help you stop attackers in their tracks.
https://blog.casa.io/the-bitcoiners-guide-to-physical-security/

2025-03-06 16:01:39 CET

Don't wait for a wrench attack. Throw a wrench in your attacker's plans.
We're putting on a webinar this afternoon with
@npub1ahx…5ech and @npub17u5…t4tp to teach you how to prevent yourself from being physically targeted for your bitcoin.
Join us at 1:30 ET. A recording will also be available after the event.
Register here: https://url.casa.io/letstalkwrenchattacks

2025-03-04 16:16:38 CET

There's nothing good that can come from telling strangers how much bitcoin you have.
Privacy is the first layer of security.
https://image.nostr.build/240a8b60a56bc491f663d80a8605c58bedc1415c417d1e17c02152aab26ecbd2.jpg

2025-02-21 00:11:42 CET

Watch out for those boating accidents or we'll end up with this 🚤
https://image.nostr.build/d2ec4f6ce33a03bb5609fb10ab8701a7ec73b08a8731bb813a03ef8d77da023f.png

2025-02-12 18:58:07 CET

🤔 If a sovereign wealth fund isn't held in self-custody, is it really sovereign?
We're building the future of sovereign reserves here: https://casa.io/government

2025-01-30 19:57:45 CET

If your business holds bitcoin but doesn’t control its keys, you’re putting your future in someone else’s hands.
Casa Business puts you in control with a 3-key vault, team signing, and a web dashboard.
Control your destiny. Learn more here: https://casa.io/business

2025-01-15 20:32:06 CET

If you're worried about getting rug pulled by a potential TikTok ban, imagine what can happen if you don't hold the keys to your bitcoin.

2025-01-09 17:03:49 CET

The power of multisig isn't just the number of keys — it's also the ability to spread these keys out to ensure your bitcoin remains resilient against localized threats like break-ins and natural disasters.
Here are some more thoughts on key distribution:
https://blog.casa.io/vault-key-distribution/

2025-01-07 23:20:11 CET

What does bitcoin mean to you? Whatever your dream may be, Casa helps you protect it.
Hear our CEO Nick Neuman explain why it's never too late to start securing your future.
https://youtu.be/c7CrFSv8APE

2025-01-03 14:22:20 CET

Happy Proof of Keys Day!
Every January 3, we celebrate the anniversary of the first bitcoin block through self-custody.
To participate, withdraw bitcoin to your own set of keys and spread the word. Together, we can keep bitcoin decentralized and self-sovereign.
https://image.nostr.build/e33f27d736ff9d1e433edb5f629e5914739e410c5146c79cdbd2f13f68d5e952.jpg

2024-12-31 15:25:34 CET

Hey nostriches! Are you ready to work for bitcoin?
Casa is hiring a Senior Client Advisor. In this role, you can help others take self-custody and build long-term relationships.
Learn more and apply here: https://job-boards.greenhouse.io/casa/jobs/4612884007

2024-12-16 23:12:21 CET

Are the robots after your #bitcoin? Stop deepfakes in their tracks.
The Casa app now has rolling two-way verification codes that you and your Casa advisor can use to verify each other.
https://blog.casa.io/deepfake-resistant-verification-codes/

2024-12-10 15:29:01 CET

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Hi there! There's not much detail we can share at this time. Each implementation is different and highly bespoke.

2024-12-09 23:13:46 CET

🔑 KEY ANNOUNCEMENT 🔑
Everyone’s talking about strategic bitcoin reserves for nation-states, but not how to secure those reserves. We are at Casa.
Earlier today at Bitcoin MENA, we just announced Praetorian by Casa, the world's first military-grade bitcoin security offering designed for governments.
Praetorian by Casa is built to secure national reserves at the highest level without sacrificing sovereignty. We’ve built it on Casa’s rock-solid security foundation and experience securing the world’s largest bitcoin holders since 2018.
Bitcoin is the type of innovation that empires will be built upon, and Praetorian by Casa is your complete defense. Learn more here: https://casa.io/government

2024-12-05 15:10:32 CET

The world is waking up to $100k bitcoin. Our clients knew it was coming all along.
For those who HODL, we salute you 🫡

2024-12-05 03:55:19 CET

Secure your $100k BTC like it's $1 million BTC.

2024-11-21 02:22:03 CET

Secure your $95k BTC like it's $950k BTC.

2024-11-13 16:11:33 CET

Secure your $90k BTC like it's $900k BTC.

2024-11-11 20:21:33 CET

Secure your $85k BTC like it's $850k BTC.

2024-11-10 13:00:15 CET

Secure your $80k BTC like it's $800k BTC.

2024-11-08 20:38:14 CET

We can think of 77,000 reasons why you should self-custody your bitcoin.

2024-11-06 19:22:46 CET

Secure your $75k BTC like it's $750k BTC.

2024-11-04 17:44:38 CET

🌎 Did you know Casa is available worldwide?
Build your bitcoin vault and set up your inheritance anywhere on Earth. The internet is everywhere. https://image.nostr.build/ec59e01718feef3b1d90eb3d4347fa332c5fc20ddc37cec5579dcdee23846ca5.png

2024-10-29 19:53:16 CET

Is your security at an all-time high?

2024-10-28 14:05:42 CET

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Learn more here: https://casa.io/inheritance

2024-10-28 14:05:20 CET

These are the good ol’ days. If you hold bitcoin with your own keys right now, you are making history.
And if someday you want to give your kids a glimpse of what these times were like, you can hand your keys to them.
We built Casa Inheritance for you.
https://image.nostr.build/402a6421bf71138a4c53b492b85d17b81006818429b779bfae5b90abf9447d60.jpg

2024-10-21 15:20:29 CEST

GM to everyone who doesn't want to trust third parties with their life savings.

2024-10-17 18:57:14 CEST

Have you been waiting for the right time to try multisig? It’s here 🙌
Try Casa Standard for FREE for 30 days 🚀
Create your bitcoin security stack with:
- 3-key vault
- YubiKey and other major HWW signing
- Casa Inheritance
- Best-in-class support
Get started here: http://casa.io/standard

2024-10-09 19:42:13 CEST

Self-custody is a go bag for your wealth.
You should have it before you need it.

2024-10-07 18:58:14 CEST

👁️ Ever get the feeling like someone's watching you?
In #bitcoin, they are. But you can take back control with OPSEC. This mindset teaches you how to avoid making yourself a unnecessary target.
Here are some tips to help you fly under the radar.
https://blog.casa.io/level-up-bitcoin-opsec/

2024-10-04 16:30:45 CEST

Filmmakers went to a lot of trouble to find who Satoshi could be. They could’ve just asked us.
We are all Satoshi 💪

2024-10-03 15:56:10 CEST

Banks want to hold your bitcoin. But should you let them? 2008 begs to differ.
Casa believes YOU are the best custodian for your bitcoin. Here's why:
https://youtu.be/LP_aAVqiCM0

2024-09-30 23:17:38 CEST

How did our clients make it through September with their bitcoin? Well, self-custody is really simple.
https://image.nostr.build/ca8cde5ce58c112851560a4a7703652d06cf72668e8cd8ef1186113c3eba15c0.jpg

2024-09-30 16:38:56 CEST

When we say our multisig is battle-tested, we mean it.
https://image.nostr.build/33eb60ff9a7755ed3eb614456b973817b423809efc999e8c20b975c8084edfcd.png

2024-09-27 18:07:39 CEST

🤔 If Prime Trust was a "qualified custodian," how did they end up losing assets?
Here's a look back on why you can't always trust a Trust.
https://blog.casa.io/prime-trust-fortress-trust-recap/

2024-09-25 15:28:05 CEST

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Hi there! The tampering vulnerability you might be referring affects devices with a firmware version below the version we have been shipping to our members.
It's not a good security practice to leave YubiKeys or hardware wallets lying around anyway. Keep them in an access-controlled location and secure them with a PIN.

2024-09-24 20:34:03 CEST

The world woke up last week to the threat of supply chain attacks after pagers and other devices began exploding in Lebanon.
And this is more than a wartime concern. Device integrity is an crucial part of your security model as a bitcoiner. Read more...
https://blog.casa.io/security-briefing-device-tampering/

2024-09-23 14:44:44 CEST

You don't have to take self-custody of all your bitcoin — just what you want to keep.
In this house, we HODL 🔑

2024-09-17 15:45:41 CEST

It's such a small chance, right? It can't possibly happen.
We hear this all the time in security.
People have often thought their bitcoin was safe from custodial failures. Then, FTX happened. Prime Trust. Celsius. The list goes on and on.
Today is no different. If you hold an ETF, you're hoping a custodian doesn't fumble the bag.
Read why it's worth considering the custodial risk of ETF offerings.
https://blog.casa.io/security-briefing-can-etfs-get-hacked/

2024-09-17 15:16:05 CEST

- reply

Sorry to hear that! Thank you for the feedback.

2024-09-16 17:39:20 CEST

Many of us see #bitcoin as hard money, but some special bitcoiners see it differently. To them, bitcoin is a $58k stablecoin. Today's offer is for them.
58k gang, we salute you 🫡
Take 10% off Casa Standard with promo code 58KGANG.
We respect your commitment to stacking bitcoin at $58k and apparently no other price, and we want to give you a home for all that corn.
With Standard, you get a 3-key vault, inheritance, and best-in-class support. It's everything you need to stay a member of the 58k gang for life.
Sometimes, number go up. Sometimes, number go down. And sometimes, number just goes. Whatever your number is, we hope it goes to self-custody.
Welcome home, 58k gang.
Get started here: https://url.casa.io/58kgang
Offer expires Sept. 18 at 12 a.m. ET and is valid for new memberships only.
https://image.nostr.build/b66e2641c6bd07c75061f4ce3b84879de3582cfbf3bb3d656e3da743d1cedc00.jpg

2024-09-16 16:05:23 CEST

Secure your $58k BTC like it's $580k BTC.

2024-09-12 16:33:04 CEST

Have you locked down your phone number? Casa can help.
SIM swaps are a huge security hole for bitcoiners. Millions in assets have been stolen over the years, but you can take action now. Casa delivers security for bitcoiners, and we’ve partnered with Efani to help you take control.
First, what’s a SIM swap? It’s a sneaky tactic where a hacker can trick your carrier, hijack your phone number, bypass your 2FA, and drain your important accounts including exchanges.
Efani prevents unauthorized SIM swaps, keeping your phone number secure even if a hacker tries to swap it. Their 11-layer client authentication protocol and mandatory 14-day cooling off period deliver comprehensive protection against unauthorized port requests 💪
Now, Casa members can lock down their phone numbers and enjoy a discount on their Efani membership (woo, save some bitcoin! 🥳).
Enjoy the peace of mind of making your mobile security as robust as your Casa vault.
Read more here: https://blog.casa.io/stop-sim-swaps-with-efani/

2024-09-06 19:21:25 CEST

For millennia, people have wanted a decentralized way to protect their wealth and themselves.
Today, we have self-custody with multiple keys.
@npub1e2w…flnt explains why this is a big deal.
https://image.nostr.build/80f285fbaab33f874bfce2b3fe0f529e5b2a26a0fa1ed6c60b46d13c7a1233c1.jpg
Hear the rest here: https://youtu.be/HoZXJT8vA74

2024-09-05 21:54:34 CEST

If you can hold the key to your #Nostr account, you can hold the keys to your #bitcoin.
No more excuses 😂

2024-08-30 15:40:59 CEST

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Hi there! Thanks for the feedback. Yes, Nick is up and running on Nostr. Here's his npub:
@npub1e2w…flnt

2024-08-28 22:53:46 CEST

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Hi there! Sure, here is some information on how to choose where you spend from.
https://support.casa.io/knowledge/sending-from-specific-addresses

2024-08-27 23:59:54 CEST

Did you know you can use a YubiKey to secure all of the following?
- Your Apple ID
- Your Gmail account
- Your Proton account
- Your exchange account
- Your bitcoin
That's one device for your digital life, now with self-custody through Casa. Simple, smooth, secure 🔑
Learn more here: https://blog.casa.io/cool-keys-security-model-for-bitcoin-and-yubikeys/

2024-08-26 21:32:15 CEST

What would happen if Casa got removed from the App Store?
You can use Sovereign Recovery, but you can also turn off app deletion on iOS devices. Here's how:
Settings > Screen Time > Content & Privacy Restrictions > iTunes & App Store Purchases > Deleting Apps > Don't Allow
We recommend doing this in advance. Read more about Sovereign Recovery here: https://support.casa.io/knowledge/sovereign-recovery-for-bitcoin-vaults
https://image.nostr.build/ed8570ee7564a37af7bcebbc1a5d55f577c52a70ac97e3008e32b26b84044495.jpg

2024-08-26 18:05:54 CEST

A banker is headed to jail for operating a fractional reserve, but not the kind you might expect.
Heartland Tri-State Bank was a Kansas community bank with around $139 million in assets. Then it went poof 💸
Learn how in this week's briefing...
https://blog.casa.io/security-briefing-how-to-break-a-bank/

2024-08-21 16:06:04 CEST

What's cooler than securing bitcoin with a YubiKey? Getting a YubiKey for free 😎
We're hosting a special giveaway TODAY ONLY.
Sign up for Casa Standard in the next 24 hours and get a YubiKey for free 🤯
Enter promo code COOLKEYS to claim. See below for details.
👉 Sign up here: https://url.casa.io/coolkeys
After signup, the Casa team will follow up via email to get you your YubiKey.
*Offer expires Thursday, 8/22 at 10 a.m. ET. Valid for new memberships only.
https://image.nostr.build/299ec1ddc37e1b46bb7d634887db9ea789d4abe9c53044117c8fae82b22abc74.jpg

2024-08-16 15:07:38 CEST

- reply

Welcome a friend to self-custody and get rewarded for it too.
https://blog.casa.io/refer-a-friend-to-casa/

2024-08-16 15:06:18 CEST

Friends don't let friends leave bitcoin on exchanges.

2024-08-12 20:37:27 CEST

There’s now an easier way to take self-custody of your bitcoin, and we announced it at Bitcoin 2024.
Didn’t catch it live? Hear @@npub1e2w…flnt discuss our latest hardware integration and how it came to be.
https://youtu.be/M7NkvZmkMng

2024-07-27 23:26:09 CEST

Have you secured your own strategic reserve, anon?

2024-07-27 00:18:14 CEST

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When you're president, can the Casa social media intern serve as treasury secretary. Asking for a friend...

2024-07-27 00:14:37 CEST

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Great point. This comes down to your security model, and it's part of why we use multiple keys and devices to make your vault more robust.
Some members may not need total air-gapped cold generation, storage, and signing for every key. Others can't grok hardware wallets. This feature provides a simple alternative to a hardware wallet that is more secure than your phone.
We see this feature as bridging the gap between your phone and your hardware wallet. Instead of a hot key or cold key, consider it a "cool key." 😎

2024-07-27 00:02:10 CEST

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You can use a PIN with this YubiKey feature.

2024-07-27 00:01:17 CEST

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YubiKeys are a form of security keys, a device you can use for multi-factor authentication in other parts of your digital life.

2024-07-26 19:45:25 CEST

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Not if you save your seed phrase 🙂
With this feature, you can back up your seed phrase upon generation and port into another device if your touch sensor fails.

2024-07-26 18:19:18 CEST

What if there was an easier way to sign #bitcoin transactions? It’s finally here.
Casa just unlocked an easy way to secure bitcoin: #YubiKey. These devices combine next-level security with smooth tap signing. It’s self-custody simplified.
Learn about the breakthrough making waves at #Bitcoin2024 below.
https://blog.casa.io/secure-your-bitcoin-with-yubikey/

2024-07-24 20:08:20 CEST

If you don't believe our announcement at #Bitcoin2024 will be a game-changer for self-custody, that's okay. We have two days to try to convince you. Don't miss it.
👉 Friday, July 26 | 10:20 a.m. CST | Nakamoto Stage
https://image.nostr.build/fba52855399718f482758e97b042719a10e6abbe5131cef594b0740094ef0fb7.jpg

2024-07-23 21:34:01 CEST

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We heard there were keys 🔑

2024-07-23 20:23:34 CEST

Withdraw to self-custody so your #bitcoin can be unburdened by what has been.

2024-07-22 18:06:10 CEST

There are many ways to hold keys — there's only one Casa. And it's about to get even better.
Come find out how we're transforming self-custody with our #Bitcoin2024 announcement.
Friday, July 26 | 10 a.m. CST | Nakamoto Stage
https://image.nostr.build/eed55b2d63fd3d4fc846a67c508f2280bffdcd1dd6ad66bc8c95179888aa656b.png

2024-07-19 16:23:00 CEST

If an IT outage can cancel your flight, imagine what a custodian can do to your #bitcoin

2024-07-17 14:56:38 CEST

Going to #Bitcoin2024?
Casa is taking self-custody to Tennessee with live sessions, panel discussions, and a major announcement 📣
Looking for help securing #bitcoin? Drop by our private room (202A) on July 26 for in-person security guidance. See you in Nashville!
https://image.nostr.build/34291d781ca6c6cc0e07ae97fe45dc9ff74f4da20dd7c02f568909818d5085ed.jpg

2024-07-15 17:03:52 CEST

Security should go up long before number go up.

2024-07-05 14:57:11 CEST

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Looks like the sale got extended another day 👀

2024-07-05 14:51:17 CEST

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Hi there. We're sorry to hear that and we're happy to help! Our advisors are available to help you select the best vault for you. Pick a time to chat here:
https://contact.casa.io/meetings/casa-advisors/book-a-call-with-an-advisor-

2024-07-04 16:46:09 CEST

Today's a great day to declare your independence from custodians.

2024-07-02 21:03:05 CEST

🤔 Why does Casa build bitcoin vaults with multiple types of devices?
You don't want a single exploit to be replicable across a majority of your keys. Device variety increases robustness.

2024-07-01 16:11:44 CEST

The stakes are higher and organized crime is after #bitcoin.
If bitcoin does what many think it will do in the coming months and years, you'll be glad you heeded the advice in this article 👇
https://blog.casa.io/bitcoiners-guide-to-organized-crime/

2024-06-24 18:17:14 CEST

If you buy the dip, don't forget to secure it too 🫡

2024-06-17 19:26:50 CEST

Every traditional asset you own has a single point of failure.
Art 🖼️
Gold 🪙
Cash 💵
Rocks 💎
Stocks 📈
Houses 🏡
Antiques 🗿
Don't settle for the same when securing your bitcoin. We have the technology to do better while taking self-custody.

2024-06-13 17:16:08 CEST

Someone's got to take custody of your bitcoin. Why not you?

2024-06-12 15:54:03 CEST

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They said HODLing wasn't easy and they were right!

2024-06-12 15:51:33 CEST

We're proud to say we survived the bitcoin crash of June 11.
😂
https://image.nostr.build/de92f5f7050452221dbdb57cd7960b4ef342545d3b2ae4b0d676ced05f6b1670.png

2024-06-11 21:30:07 CEST

When you use Nostr, you sign each post and reply with a private key.
Never use a key before? Here's an intro to this game-changing tech.
https://blog.casa.io/private-keys-and-how-they-work/

2024-06-10 15:35:00 CEST

🧠 Did you know you don't have to use a mobile key with a 3-key vault?
You can swap a second hardware key for your mobile key. This is a great fit for those who don't want a key on a device they carry around all the time.
Read more tips here:
https://blog.casa.io/5-ways-to-personalize-your-casa-vault/

2024-06-07 23:34:20 CEST

You don't leave your steak at the grocery store, anon 🥩
Don't leave your bitcoin on an exchange.

2024-06-06 15:33:53 CEST

I do not identify as an unhosted wallet 🤷‍♂️

2024-05-29 16:11:50 CEST

Your bitcoin's security is only as strong as its weakest link. 🔗

2024-05-28 15:41:26 CEST

Announcing support for Bitcoin Wallet Descriptors! We believe that descriptors are an important stepping stone toward increasing interoperability and reducing backup fragmentation across the wallet ecosystem.
https://blog.casa.io/introducing-wallet-descriptors/

2024-05-22 16:18:28 CEST

Are you planning on setting up a multisig wallet? Make sure you choose hardware devices that are up to the task!
https://blog.casa.io/bitcoin-multisig-hardware-signing-performance-2024/

2024-05-14 15:25:48 CEST

We're hiring a Security Operations Engineer to work directly with @npub17u5…t4tp!
Check out the job posting here to see if you're a good fit: https://boards.greenhouse.io/casa/jobs/4375149007

2024-05-12 19:55:45 CEST

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0%, we haven't added it to our commerce system.

2024-05-12 19:46:09 CEST

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Doubtful, since users don't even know Lightning is an option until they're at the end of the signup process. Most pay with credit card.

2024-05-12 19:43:52 CEST

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We're not blocking inbound channels, but neither do we need more inbound liquidity at this time.

2024-05-12 17:42:47 CEST

Since we quietly enabled Lightning Network payments in our BTCPay store one month ago, 70% of purchases under $500 have been made via Lightning!

2024-04-23 18:01:54 CEST

🚨Alert!🚨
We've been seeing more malicious activity where scammers are onboarding victims to testnet bitcoin wallets and selling them testnet coins at mainnet exchange rates.
Make sure your friends and family are aware that testnet bitcoin is not real bitcoin!