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.

Bitcoin Core
Slow unbounded memory growth on paused pre-BIP31 peers Bitcoin Core queues announcements for all peers, including paused ones. Pre-BIP31 peers could stay
paused forever and let the queue grow unboundedly. A fix for this issue was released in Bitcoin Core
versions 29.5, 30.4, 31.2 and 32.1.
This issue is considered Medium ...
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Bitcoin Core
Unbounded memory growth through TCP urgent data on non-Linux systems On platforms other than Linux, a malicious peer could cause a node to run out of memory by sending TCP
urgent (out-of-band) data. A fix for this issue was released in Bitcoin Core versions 29.5, 30.4,
31.2 and 32.1.
This issue is considered ...
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Bitcoin Core
Bitcoin Core 30.4 released Bitcoin Core version 30.4 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
Bitcoin Core 31.2 released Bitcoin Core version 31.2 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
Undo file overflow under extreme conditions Disclosure of the details of a bug that lets a miner corrupt the undo data of other nodes, causing
them to shut down if a reorg of precisely the right blocks follows, or on Windows and 32-bit systems
as soon as the ...
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Stephan Livera Podcast
Morgen Rochard: Holding Bitcoin Is Not a Financial Plan | SLP785 Holding Bitcoin is not a financial plan. That is the starting point of Morgen Rochard's new book, Bitcoin Personal Finance, and of her return to the show. Bitcoin can fix the money, but it does not fix under-saving, spending habits ...
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Understanding the COLDCARD Mk5 and Q Security Model
COINKITE Blog
Understanding the COLDCARD Mk5 and Q Security Model COLDCARD Mk5 and Q look very different, but they use the same core security
architecture: two secure elements from different vendors, an STM32
microcontroller, locally verified firmware, a clear case, and no required
companion app.
This is the current version of our original Mk4 ...
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Stephan Livera Podcast
Debt, Oil, AI and Bitcoin: A Gradual Print Until It Isn't | James Lavish SLP784 James Lavish explains why he expects a gradual print to turn into a big one, what weak Treasury auctions signal, and what he got wrong about Bitcoin this cycle.Timestamps00:00 — Intro00:48 — Markets: Warsh, Oil and a Narrow Rally04:22 — ...
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Stephan Livera Podcast
Plan Your Second Passport Before You Need It | Alex Recouso SLP783 Official Podcast Episode: https://stephanlivera.com/783Alex Recouso argues that Bitcoin solved capital mobility but not human mobility: you can move money across borders without permission, yet you still need permission to move yourself. His answer is that everyone should think about a ...
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Casa Blog
Casa Blog
The Ledger implant: how a sealed device gave up its seed phrase Ledger confirmed a hidden implant in devices sold by CryptoBilis. What happened, what to check, and how a multi-vendor 3-key vault limits one bad device.
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Stephan Livera Podcast
Debanking and Bitcoin Business Accounts in the EU | Prashanth Chandrashekar SLP782 Prashanth Chandrashekar argues that much of Europe's debanking comes down to how banks score transfers. Money arriving from a crypto exchange's account is treated as a higher-risk third-party payment, while a transfer between two accounts in your own name passes ...
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ELLIPAL - News
ELLIPAL Integrates MoonPay Trade, Bringing Non-Custodial Trading to Its Global User Base ELLIPAL has integrated MoonPay Trade, a third-party trading service, into the ELLIPAL App. Users can trade tokens across chains from cold storage, signing offline on Titan 2.0 by QR code or on ELLIPAL X Card with a tap.More
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Casa Blog
Casa Blog
Bunker mode and bitcoin address reuse: what bitcoiners should know Bunker mode asks bitcoiners to keep funds at fresh addresses. Learn what address reuse means, how public keys get exposed, and what to check first.
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ELLIPAL - News
TOKEN2049 Singapore 2026 Recap: Self-Custody You Can Hold A recap of TOKEN2049 Singapore 2026 at Marina Bay Sands, and how visitors to the ELLIPAL booth signed with ELLIPAL Titan 2.0 by QR code and ELLIPAL X Card by tap.More
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ELLIPAL - News
Ledger Reseller Incident: How a Hardware Implant Reads a Seed Phrase Ledger is investigating lost funds tied to one reseller, and one buyer found a hidden module behind the screen. How such an implant reads a seed phrase, and how to check a device before setup.More
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Stephan Livera Podcast
Seed Phrases vs Key Sharding: Multisig's UX Trade-offs | Setzeus SLP781 Setzeus argues that 90% of people will never properly use seed phrases and hardware wallets, and that services like Privy and Turnkey, which split a key behind an email or phone login, are a good-enough floor for self-custody. Stephan pushes ...
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Casa Blog
Casa Blog
What is a multisig wallet? Multisig means multi-signature. A bitcoin wallet with several keys, where more than one must sign before coins move. A Casa 3-key vault needs two of three.
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COLDCARD Firmware 5.6.3 & 1.5.3Q: Codex32 and Shamir Backups
COINKITE Blog
COLDCARD Firmware 5.6.3 & 1.5.3Q: Codex32 and Shamir Backups COLDCARD firmware 5.6.3 for Mk4/Mk5 and 1.5.3Q for Q let you split the
wallet already on your device into Codex32 Shamir shares. No funds move, and
the wallet does not change.
Codex32 is the main feature. The release also adds optional Seed Vault ...
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Codex32 and Shamir Backups on COLDCARD
COINKITE Blog
Codex32 and Shamir Backups on COLDCARD Your seed backup has a problem that more copies cannot fix.
One copy is a single point of failure: lose it, lose the coins. Make a second
copy and that is fixed, at the cost of doubling the number of places somebody
can ...
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Casa Blog
Casa Blog
Hot wallets vs. cold wallets: Which is most secure for bitcoin and ethereum? Hot and cold, custodial and non-custodial. Here is what each wallet type protects against, where a single key runs out, and what changes when you move to a multi-key vault.
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COINKITE Blog
Build and Run Your Own COLDCARD Firmware COLDCARD will run firmware you build yourself. The source tree includes the
development signing private key (key zero), so you can change the code, test
it, build a DFU file, and install it without asking Coinkite to sign it.
The bootloader makes 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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