Casa Blog - Bitcoin Security Made Easy

Hot on the trail of our recent fundraising announcement, we’re excited to announce another salvo of product improvements!

  1. We’ve removed the email dependency from hardware wallet signing - so you can safely sign multi-signature transactions without depending on email
  2. Update your default currency - view your Bitcoin balance in USD, GBP, EUR, AUD, or CAD
  3. Create bitcoin invoices - to request bitcoin payments with specific amounts
  4. Recovery Question Health Checks - Casa Gold users can now do Health Checks on their recovery questions

All these updates are live in your Casa App today. Here are the details:

📭 Signing with your hardware wallet no longer requires email

As a refresher: to sign a multi-signature transaction with your Trezor, Ledger, or Coldcard, Casa users follow these 3 steps:

  1. Tap in your Casa App to send yourself an email with a signing link
  2. Open the link on your computer
  3. Connect your hardware wallet and sign

But what if your email service is temporarily down? Or what if Casa’s email service is experiencing a delay?

At Casa, we’re constantly focused on eliminating SPOF (Single Points of Failure).

So even though we’ve had over 99.998% service uptime over the past year, we never want anything (including our email service, or yours), to prevent you from completing a transaction when you need to.

That’s why we’ve removed this email dependency.

Now, if your email isn’t showing up, just double-tap ‘I Didn’t Get The Email.’

Tap 'I Didn't Get The Email' once to re-attempt email. Tap it again to pull up the share sheet with your contacts.

This will open up a share sheet giving you direct access to the signing link, which you can open on your computer to sign the transaction. Think of it as a mini-’Plan B’ in case there’s ever an email disruption.

🍏 Pro-tip: Using an iPhone + Mac? Use AirDrop. You can beam the signing link instantly from your iPhone to your Mac. It’s so fast and so smooth that it’s become our preferred way to sign all transactions (even when email is working perfectly).

🌍 Update your default currency

As a reminder: Casa is available internationally! In fact, many Casa clients are based overseas.

Today, we’re happy to announce that international clients can now view their bitcoin balances in their local currencies. We currently support these currencies and will be adding more in 2021:

  • 🇺🇸 USD
  • 💶 EUR
  • 🇬🇧 GBP
  • 🇦🇺 AUD
  • 🇨🇦 CAD

To update your currency, head to Settings and tap Default Currency.

You can now view your balance in US dollars, Canadian dollars, Australian dollars, pounds, and euros.

🧾 Create Bitcoin invoices

Someone owe you a specific amount of bitcoin? You can now create an invoice in a breeze with your Casa App.

To create an invoice:

  1. Tap ‘Receive’ and hit the ‘...’ icon
  2. Enter receive amount
  3. Tap ‘Generate Invoice’

Invoices show up as QR codes. Show this QR code to your friend (or client) and, as soon as they scan it with their Bitcoin wallet, their wallet will create a transaction to you in the amount you entered.

Health Checks for Gold Security Questions

Casa Gold clients can now perform Health Checks on their security question. This helps you ensure you have your answers recorded correctly for the next time you want to request a signature from the Casa Recovery Key.

To perform a Health Check, tap into your ‘Recovery Key’ and then tap ‘Verify Recovery Questions.’

For more info on the Casa Recovery Key, check out this post:

What you need to know about the Casa Recovery Key
Taking the edge off self-sovereignty since 2018 By protecting your bitcoin with multiple keys, and ensuring that those keys are subject to a diversified set of risks, you can be sure that no single event - and no single threat - will ever jeopardize your wealth. You can read more about key diversi…

🕑 ICYMI: Last month’s updates

In case you missed it, last month we shipped two long-requested features!

  1. Transaction memos - so you can label your individual transactions
  2. Encrypted mobile key backups - for added security and to make it easy to switch between Android and iOS

You can read more about those here:

Casa Product Updates | January 2021
Casa announces our latest product update, including transaction memo labeling, and encrypted mobile key backups.

Not feeling 100% confident in your Bitcoin security? Let's get it handled.

Casa Gold is FREE to try for 30 days and only $120 / year after that. Ready to move directly to our Platinum or Diamond tiers? You can get started here or book a call with our Client Services team to learn more.

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Casa's CTO Jameson Lopp regularly reports on the Bitcoin security + privacy landscape. Sign up for our weekly security newsletter to stay in the know.