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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
New: Secure your bitcoin with a YubiKey Casa just announced a breakthrough for bitcoin security: for the first time ever, you can secure your bitcoin keys with a YubiKey.
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ELLIPAL - ELLIPAL Blog
The Basics of How Cryptocurrency Wallets Work Navigate the world of cryptocurrency securely with our in-depth guide on crypto wallets. Understand the purpose of public and private keys, explore different wallet options—software, hardware, and paper—and learn how each operates to safeguard your assets. Embrace convenience without compromising ...
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ELLIPAL - ELLIPAL Blog
The Impact of Spot ETH ETF Approval on the Crypto Market The Ethereum network, a leader in the cryptocurrency domain, introduces its own Exchange-Traded Fund (ETH ETF), offering a simplified investment avenue on stock exchanges. This article demystifies Ether ETFs, demonstrating their role in enhancing investor confidence, improving liquidity, and fostering ...
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Casa Blog
Casa Blog
The institutional case for self-custody With self-custody, an institution can invest in bitcoin and hold the keys for that future.
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Casa Blog
Casa Blog
Security Briefing: Domains hijacked, AT&T data pwned A lot of infrastructure and data has been hijacked so far this month, and it does have implications for your self-custody. Let's dive in into this week's briefing.
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Casa Blog
Casa Blog
Security Briefing: Child kidnapped for crypto, ransom demanded The cruel summer of crypto and organized crime has gone global. This week, we're diving into some incidents in Asia you should know about...
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Bitcoin Core
Bitcoin Core 26.2 released Bitcoin Core version 26.2 is now available for download. See the release notes for more information about the many
bug fixes in this release.
If you have any questions, please stop by the #bitcoin IRC chatroom
(IRC, web) and we’ll do our ...
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Casa Blog
Casa Blog
A bitcoiner’s guide to organized crime Organized crime rings are targeting crypto holders. How can you protect yourself from becoming a target?
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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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Bitcoin Core
Disclosure of crash using malicious BIP72 URI Bitcoin-Qt could crash upon opening a BIP72 URI.
This issue is considered Medium severity.
Details
BIP72 extends the BIP21 URI scheme
with an r parameter to fetch a payment request from. An attacker could simply point the URL
contained in the r parameter to a ...
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Bitcoin Core
Disclosure of memory DoS using low-difficulty headers After Bitcoin Core 0.12.0 and before Bitcoin Core 0.15.0 a node could be spammed with minimum
difficulty headers, which could possibly be leveraged to crash it by OOM.
This issue is considered Medium severity.
Details
Before the introduction of headers
pre-synchronisation, nodes relied exclusively on
checkpoints ...
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Bitcoin Core
Disclosure of CVE-2020-14198 Bitcoin Core maintained an unlimited list of banned IP addresses and performed a quadratic operation
on it. This could lead to an OOM crash and a CPU Dos.
This issue is considered High severity.
Details
Bitcoin Core maintained a list of banned IP addresses. ...
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COINKITE Blog
NFC PushTx and More Updates New COLDCARD Release: Versions 5.3.2 (Mk4) and 1.2.2 (Q)
Powerful New Feature: NFC Push Tx
This is a release with a many small bugfixes and little enhancements…
plus one major new feature: NFC Push Tx.
You can now simply tap your COLDCARD to your ...
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Version 5.2.1 for Mk4 Released
COINKITE Blog
Version 5.2.1 for Mk4 Released New Mk4 Release: Version 5.2.1 (now 5.2.2)
Lots of Little Features and Bugfixes
This is a release with a few smaller features, enhancements and minor bug fixes.
New Features
Provide user with useful info about transaction level “relative lock-times” (RTL)
when signing. Required ...
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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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