Keith Gardner of Branta – “Pay With Certainty.”
It has been a good year since the venture arm of our firm invested in Keith Gardner’s Branta, our first...
CyberSec & Custody
Cyber-Security & Custody related articles.
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...
The NPM Supply Chain Attack Was a Warning for Crypto Users
Learn how the recent NPM supply chain attack exposed hidden risks for crypto users and why software security matters beyond...
zeroShadow – the Interview: “Nobody resolves a major crisis completely in isolation”
Col Graham of zeroShadow explains why crypto security now depends on shared threat intelligence, crisis response networks, and stronger user...
Wrench Attacks: When Crypto Crime Moves Offline
Wrench attacks move crypto crime offline through physical coercion. Learn who is targeted, why attacks are rising, and how custody...
Calendly phishing attack: lessons from the Trezor X hack
A fake Calendly invite helped attackers compromise Trezor's X account. Here is what happened, what stayed safe, and how crypto...
