A feed of the latest blog posts from major bitcoin and crypto wallet companies and developers, direct from the source.  A quick way to stay on top of the latest potential security issues, new products and current deals.

ELLIPAL - ELLIPAL Blog
$300 Swap – Cold Wallet Lucky Draw! Swap crypto, test your luck.Every swap of $300+ automatically enters the ELLIPAL Swap Lucky Draw — no sign-up needed.Win prizes like a FREE ELLIPAL X Card or Seed Phrase Steel, with 3 winners announced every week.More
Introducing the COLDCARD Mk5
Introducing the COLDCARD Mk5 The Mk4 is a proven workhorse. It’s secure, it’s air-gapped, and it gets the job done. But engineering is about moving forward. Today, we’re introducing the next step in that evolution: the COLDCARD Mk5.
The Mk5 builds on the trusted, battle-tested ...
BIP-322 Support, WIF Keys, and more!
BIP-322 Support, WIF Keys, and more! New COLDCARD Feature Release: BIP-322 and WIF Support
Today we are releasing a new firmware version for COLDCARD. Tons of new features for both product families: Mk and Q!
New Features
BIP-322 Signing
COLDCARD can now sign BIP-322 “Proof of Reserve”
PSBT files.
This requires a ...
Bitcoin Core 29.3 released Bitcoin Core version 29.3 is now available for download. See the release notes for more information about the
bug fixes in this release.
If you have any questions, please stop by the #bitcoin IRC chatroom
(IRC, web) and we’ll do our best ...
ELLIPAL - ELLIPAL Blog
You Can Now Store SEI on ELLIPAL ELLIPAL Firmware 4.10 now supports Sei (SEI), enabling secure, air-gapped cold storage for this trading-optimized Layer 1 blockchain.Learn what makes Sei unique, why self-custody is critical for SEI holders, and how to store SEI safely using ELLIPAL’s 100% offline QR-code ...
ELLIPAL - ELLIPAL Blog
ELLIPAL Now Supports Monad (MON) ELLIPAL Firmware 4.10 introduces full support for Monad (MON), enabling secure, air-gapped cold storage for this high-performance Layer 1 blockchain.Learn what Monad is, why self-custody matters, and how to store MON safely using ELLIPAL’s 100% offline QR-code signing technology.More
ELLIPAL - ELLIPAL Blog
Does a Cold Wallet Protect You from DeFi Hacks? Private Key Risk vs. Smart Contract... Cold wallets protect your private keys—but not assets you've authorized to DeFi protocols. Learn the critical difference between private key risk and smart contract risk, and understand what hardware wallets can and cannot protect.More
Bitcoin Core 30.2 released Bitcoin Core version 30.2 is now available for download. See the release notes for more information about the
bug fixes in this release.
If you have any questions, please stop by the #bitcoin IRC chatroom
(IRC, web) and we’ll do our best ...
ELLIPAL - ELLIPAL Blog
ELLIPAL Talks Self-Custody With Bitcoin News Our team recently joined Bitcoin News for a friendly conversation about ELLIPAL’s mission to make self-custody feel normal, secure, and accessible. Our Growth Lead, John Antes, shared his personal Bitcoin journey and why true ownership, not price, is at the ...
Wallet Migration Failure May Delete Unrelated Wallet Files In Bitcoin Core 30.0 and 30.1 We have become aware of a wallet migration bug introduced in Bitcoin Core 30.0 and 30.1. Under rare circumstances, when the migration of a wallet.dat file fails, all files in the wallet directory may be deleted in the process, potentially ...
Bitcoin Core 30.1 released Bitcoin Core version 30.1 is now available for download. See the release notes for more information about the
bug fixes in this release.
If you have any questions, please stop by the #bitcoin IRC chatroom
(IRC, web) and we’ll do our best ...
Announcing SOC 2 Type II Compliance Casa's internal security controls have now been verified by independent auditors over a 6 month period.
A new look for your vault At Casa, our mission is to help people and organizations take true control of their bitcoin, forever. We believe in sovereignty, and that individuals, families, and businesses should have the tools to protect their wealth without relying on third parties.Today ...
Casa Expands Integrations for Seamless Self-Custody: Now with Rhino Bitcoin Casa clients can buy bitcoin through Rhino's secure platform and easily transfer to Casa vaults.
COLDCARD Bitcoin Spending Policy Released New COLDCARD Feature Release: Spending Policies!
Spending Policy for Single Signers
You can now take your existing single-signer COLDCARD and reconfigure it
so that the COLDCARD will refuse to sign transactions that are “too big” /
“too fast”, or send to an address not ...
Earn Sats Straight to Cold Storage with Zaprite and COLDCARD Earn Sats Straight to Cold Storage with Zaprite and COLDCARD
Zaprite and COLDCARD: Empowering Bitcoin Payments with Cold Storage Security
Bitcoin adoption continues to grow among freelancers, creators, and businesses worldwide. Yet one challenge persists – many users receive payments into hot ...
Coldcard Cosign and Key Teleport
Coldcard Cosign and Key Teleport New COLDCARD Release: Many BIG features & Fixes!
Two New Heavyweight Features
CCC: COLDCARD can now Co-sign like collaborative multisig HSMs, no centralized servers needed.
KeyTeleport: Send secrets on a video call to other COLDCARD! Securely move seeds,
secure notes/passwords, multisig PSBTs, even full ...
NEW SHOW ANNOUNCEMENT: COPENHAGEN We’re pleased to announce an intimate show in Copenhagen, at Rust on September 1st! Where we will be playing 'And The Glass Handed Kites…’ in its entirety.Tickets are on-sale NOW here: https://mew.ffm.to/copenhagen2021.owe
HELSINKI AND OSLO
HELSINKI AND OSLO Due to local restrictions still in place we have rescheduled our headline shows in Helsinki and Oslo to January 2022. Tickets for the original dates will remain valid for the new dates: mew.ffm.to/live- January 27: The House of Culture, Helsinki.- ...
Bitcoin Supercycle or nah? Date of writing: 27/05/2021 & Bitcoin price: $39,600 USD/BTC or 1 sat = $0.0004 USD Every now and again I […]
SLP Bitcoin Custody Series Welcome to the Bitcoin Custody Interview Series. Hopefully you will enjoy this as a follow on from my prior Hardware […]