When we say our multisig is battle-tested, we mean it.

🤔 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/

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.

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/

You don't have to take self-custody of all your bitcoin — just what you want to keep.

In this house, we HODL 🔑

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/

Sorry to hear that! Thank you for the feedback.

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.

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

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/

For millennia, people have wanted a decentralized way to protect their wealth and themselves.

Today, we have self-custody with multiple keys.

nostr:npub1e2wr9uhjheywu9eprtxmdkshj8zdr92s8z5t9wkny650rnyp35mskxflnt explains why this is a big deal.

Hear the rest here: https://youtu.be/HoZXJT8vA74

If you can hold the key to your #Nostr account, you can hold the keys to your #bitcoin.

No more excuses 😂

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

nostr:npub1e2wr9uhjheywu9eprtxmdkshj8zdr92s8z5t9wkny650rnyp35mskxflnt

Hi there! Sure, here is some information on how to choose where you spend from.

https://support.casa.io/knowledge/sending-from-specific-addresses

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/

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

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/

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.

Welcome a friend to self-custody and get rewarded for it too.

https://blog.casa.io/refer-a-friend-to-casa/

Friends don't let friends leave bitcoin on exchanges.