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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.

Coldcard Cosign and Key Teleport
COINKITE Blog
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 ...
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Bitcoin Core
Bitcoin Core 29.0 released Bitcoin Core version 29.0 is now available for download. See the release notes for more information about the
bug fixes in this release.
With the release of this new major version, versions 26.x and older are at
“Maintenance End” and will no ...
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Casa Blog
Casa Blog
Key distribution: Tips for making the most of your multisig vault At Casa, we build multisig vaults to arm our members with the strongest self-custody for their digital wealth. Let’s cover some major principles to bear in mind.
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Casa Blog
Casa Blog
The bitcoiner’s guide to physical security How do you make sure a $5 wrench attack remains just a meme and not your reality?
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Casa Blog
Casa Blog
Coinbase scams: How they work and how you can stop them Did you get a call from someone claiming to be Coinbase support or another exchange? It was likely a scam. Learn how to protect your bitcoin from scammers here.
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New COLDCARD EDGE Version Released
COINKITE Blog
New COLDCARD EDGE Version Released New COLDCARD EDGE Release: Versions 6.3.5X (Mk4) and 6.3.5QX (Q).
Catch-Up Release
This release is meant to catch-up Edge with the recent main release
which included many useful bugfixes and improvements. Read
about it in our most recent Feb 13/25 post.
One important non-code ...
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New Release: Signing and Address Display
COINKITE Blog
New Release: Signing and Address Display New COLDCARD Release: Versions 5.4.1 (Mk4) and 1.3.1 (Q)
New (Message) Signing Features
We love message signing (and transaction signing too). It’s useful to prove ownership
of UTXO and to test access to appropriate private keys. We’ve added some new
ways to sign ...
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Casa Blog
Casa Blog
Introducing Casa Business: Unlocking self-custody for every company Through Casa Business, a company can hold some or all of its business treasury in self-custody in a 3-key vault.
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Bitcoin Core
Bitcoin Core 28.1 released Bitcoin Core version 28.1 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 ...
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Casa Blog
Casa Blog
Casa to sunset iOS 15 support on February 1, 2025 Casa will be discontinuing support for iOS 15 on February 1, 2025.
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COINKITE Blog
New COLDCARD EDGE Version Released New COLDCARD EDGE Release: Versions 6.3.4X (Mk4) and 6.3.4QX (Q).
Bugfix Release
This bugfix release fixes a potentially serious policy deserialization
bug affecting versions 6.2.2X, 6.3.3X, and 6.3.3QX. The bug is limited
to policies where key placeholders are not in strictly ascending
order. This bug ...
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COINKITE Blog
Blockclock MINI/MICRO Update with BitcoinTreasuries.net New MINI and MICRO Firmware, and BitcoinTreasuries.net
All the tasty data from BitcoinTreasuries.net is now
available for display on your Blockclock! At the same time, we’ve updated the firmware
to version 1.2.3. You don’t have to upgrade the firmware to see the ...
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Bitcoin Core
CVE-2024-52922 - Hindered block propagation due to stalling peers Before Bitcoin Core v25.1, an attacker can cause a node to not
download the latest block.
This issue is considered Medium severity.
Details
When receiving a new block announcement via a headers or compact
blocks message, the delivering peer is requested either the full
block or ...
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Bitcoin Core
Bitcoin Core 27.2 released Bitcoin Core version 27.2 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 ...
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Bitcoin Core
CVE-2024-52921 - Hindered block propagation due to mutated blocks Before Bitcoin Core v25.0, a peer sending mutated blocks could clear the
download state of other peers that also announced the block to us, which would
hinder block propagation.
This issue is considered Medium severity.
Details
Bitcoin Core treats a block as mutated when, for example, the ...
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Bitcoin Core
Disclosure of DoS due to inv-to-send sets growing too large Before Bitcoin Core v25.0, the per-peer m_tx_inventory_to_send sets could grow
too large to a point where sorting these sets when constructing inventory
messages would affect the node’s ability to communicate with its peers. Network
conditions in early May 2023 triggered this DoS and ...
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COINKITE Blog
Performance and Fixes New COLDCARD Release: Versions 5.4.0 (Mk4) and 1.3.0 (Q)
Seed XOR Changes
XOR from Seed Vault (select other parts of the XOR from seeds in the vault).
This allow Restore of geographically distributed SeedXOR, without physically bringing
the ...
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New COLDCARD EDGE Version Released
COINKITE Blog
New COLDCARD EDGE Version Released New COLDCARD EDGE Release: Versions 5.3.3X (Mk4) and 1.2.3QX (Q)
What is EDGE?
new_edge is our newest long-lived branch that contains features that may not be ready for prime time,
such as Taproot and Tapscript, BSMS and Miniscript.
Our standards for releasing new Edge
versions ...
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Blog - MEW
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
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HELSINKI AND OSLO
Blog - MEW
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.- ...
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Stephan Livera
Stephan Livera
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 […]
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JAPAN 2021 SHOWS CANCELED
Blog - MEW
JAPAN 2021 SHOWS CANCELED MEW’s Japan tour originally scheduled on Jan16th – Jan19th is cancelled due to current situation of COVID-19 all over the world.Ticket refunds will be available from the point of purchase.We’re looking forward to returning to Japan and being able to ...
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