Trezor Safe 7 Chip Flaw: Why Safe 5 Is Still Better

Trezor Safe 7 Chip Flaw: Why Safe 5 Is Still Better

Trezor’s Safe 7 TROPIC01 chip flaw is not a reason to panic, but it is a reminder that new hardware needs time to prove itself. Here’s why Black Seed Ink still prefers the more mature...
How to Diversify Risk in Self-Custody: 4 Proven Strategies to Protect Your Crypto

How to Diversify Risk in Self-Custody: 4 Proven Strategies to Protect Your Crypto

Self-custody gives you true ownership, but it also makes you fully responsible for security. The smartest approach isn’t just “cold storage”… it’s diversification. Here are four practical ways to reduce single points of failure and...
Tangem Wallet Review (2026): Simple Cold Storage for HODL

Tangem Wallet Review (2026): Simple Cold Storage for HODL

Tangem is a card-based, NFC (Near-Field Communication) hardware wallet built for beginners who want self-custody without the usual setup headaches. With a tap-to-sign experience and a “hardware stays simple, app gets smarter” model, it’s one...
Hacker Brute Force Passphrase

Crypto Passphrase Brute-Force Chart 2025 (4-11 Chars)

Curious how long it would take a hacker to brute-force your wallet passphrase? Our updated chart shows worst-case crack times (from minutes to billions of years) across 4- to 11-character phrases and every combo of...
Trezor Safe 7 Review: Bluetooth iPhone, Price vs Safe 5

Trezor Safe 7 Review: Bluetooth iPhone, Price vs Safe 5

Trezor’s new Safe 7 finally cuts the cable—bringing Bluetooth that works with iPhone, a large 2.5" touchscreen, and the world’s first auditable TROPIC01 secure-element chip. We compare it head-to-head with the Safe 5 and Safe...
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...
XRP on cell phone in hand

$3 M XRP Hack: Ellipal ‘Cold Wallet’ Breach Explained

A recent $3 million XRP heist shows how private keys stored in Ellipal’s in-app hot wallet bypassed the air-gapped device. This post dissects the breach and presents six hardware-wallet safeguards—diversify seeds and brands, add passphrases...
Trezor and D'Cent wallets in packaging atop a iPad keyboard and iPad

Trezor Safe 3 vs Safe 5 vs D’Cent: Which Wallet Wins

Both D'Cent and Trezor are strong cold storage choices, with the decision coming down to hidden passphrase wallets vs visible multi accounts, biometrics vs touch, and chip assurance.
Man sitting on couch hyperventilating

D'Cent Wallet: 3 Cold-Storage Rescue Scenarios

Get practical, step-by-step drills for seed-phrase theft, device loss, and the worst-case combo so you can keep your D’Cent wallet, and your crypto, safe under any circumstance.