SparkCat: How Malicious Apps Steal Wallet Recovery Phrases
Could an app downloaded from the App Store or Google Play put your crypto wallet at risk? SparkCat, a malware...
CyberSec & Custody
Cyber-Security & Custody related articles.
Blink Wallet Hack – The Bounty Hunt Is On
As if the year had not been difficult enough already for the wider Bitcoin ecosystem, September brought the news that...
Crypto Clipper: Microsoft details malware targeting Bitcoin and crypto users
In June 2026, Microsoft detailed a Windows malware campaign that combined clipboard manipulation, theft of copied seed phrases and private...
The $8.5 Million Trust Wallet Hack
How did the $8.5 million Trust Wallet hack happen? Key details on the security breach, affected users, and how to...
Keith Gardner of Branta – “Pay With Certainty.”
Keith Gardner explains how Branta verifies recipients, protects payment privacy, and helps wallets stop fraudulent Bitcoin transfers before the blockchain.
Dark Skippy Revisited: What the Hardware-Wallet Attack Taught Us
In 2024, security researchers demonstrated Dark Skippy—a malicious-signer attack capable of leaking a Bitcoin wallet’s seed through as few as...
Commentary on the Coldcard incident – July 2026
This commentary was provided by a member of the BV CyberSec team and examines the incident’s wider impact on the...
What is Clear Signing? Why is it an important security standard in the crypto world?
What is clear signing? Learn how it makes crypto transaction details readable before approval and helps reduce the risks associated...
NimDoor Post-Mortem: A Sophisticated macOS Attack on Crypto Targets
NimDoor shows how DPRK-linked attackers used fake Zoom updates and social engineering to target macOS users across crypto and Web3...
