Yubikey approving crypto transaction.

YubiKey for Crypto: Exchange Login & Withdrawal Security

Your crypto exchange password has been stolen. The hacker is 7,000 miles away, logged in, and ready to drain your account. There's just one problem. He doesn't have your YubiKey. But does your exchange actually...
Trezor Passphrase Security: Has It Gone Too Far?

Trezor Passphrase Security: Has It Gone Too Far?

Trezor's refusal to store passphrases is a security advantage. But even the Safe 7 makes entering long, random passphrases unnecessarily difficult. Is Trezor's hardware design pushing users toward convenience at the expense of stronger security?
D'CENT Wallet and App

D’CENT Wallet Security Alert: What Users Should Know

D’CENT is investigating unauthorized transfers involving its App Wallet. Black Seed Ink stopped recommending D’CENT six months earlier over security, transparency and supply-chain concerns.
What the Old Railroad Era Can Teach Us About Crypto Custody

What the Old Railroad Era Can Teach Us About Crypto Custody

The rails may be digital now, but the lesson is old. As blockchain networks begin carrying stablecoins, tokenized assets, and other forms of real value, custody becomes the modern Wild West security problem all over...
Hacker Brute Force Passphrase

Crypto Passphrase Entropy: Why Randomness Beats Complexity

This Research Lab article explains why entropy matters more than complexity when creating a strong cryptocurrency passphrase. Rather than relying on predictable combinations of uppercase letters, numbers, and symbols, it examines how truly random word...
Secure Your Crypto: Seed Phrase Guide 2025

Secure Your Crypto: Seed Phrase Guide 2025

Self-custody puts you—not an exchange—in control. This guide shows how to engrave Black Seed Ink steel plates, diversify hardware wallets, add passphrases, and run quarterly security check-ups, so you remain the lone gatekeeper of your...
Neighborhood on fire

Key Cards vs Steel Plates: Seed-Phrase Backup Guide

Recovery key cards (NFC, cloud shards, USB clones) make restoring a wallet painless—but they melt or fail in the very disasters that destroy hardware wallets. Deep-scribed 316L steel plates survive 800 °C house fires and...
Woman holding coffee cup and cellphone, plus Black Seed Ink steel wallets in the foreground.

Why Cold Storage Matters for Crypto Investors

Cold storage offers unparalleled security for long-term crypto investors by keeping your private keys offline and safeguarding against online threats. Discover how solutions like hardware wallets and Black Seed Ink’s durable seed phrase backups provide...
Woman working on laptop with holographic security lock floating next to the laptop.

Eight Seed Phrase Backup Mistakes to Avoid

Don’t fall victim to common errors like storing a single copy or relying on flimsy materials. Read up on the worst pitfalls and learn how to protect your digital assets.