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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.

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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Casa Blog
Casa Blog
Nice try, AI: Introducing new deepfake-resistant verification codes Recently, Casa rolled out deepfake-resistant verification codes aimed at protecting our clients’ bitcoin from imposters. This new feature is available for Premium, Enterprise, and Private Clients.
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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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Casa Blog
Casa Blog
Introducing Praetorian by Casa: Empowering self-custody for sovereign bitcoin reserves Through Praetorian by Casa, a nation-state can hold the private keys to its strategic bitcoin reserve using a purpose-built security model.
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Casa Blog
Casa Blog
Bitcoin multisig hardware signing performance report (2024) This article covers a series of stress tests to determine hardware wallet capabilities when signing multisig transactions of varying complexity.
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Bitcoin Core
Disclosure of 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
Disclosure of 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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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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Stephan Livera
Stephan Livera
SLP Bitcoin Custody Series Welcome to the Bitcoin Custody Interview Series. Hopefully you will enjoy this as a follow on from my prior Hardware […]
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