YubiKey 5C NFC: The Ultimate Ubuntu 25.10 Hardening Guide

From Boot to Shell: Zero Passwords, Maximum Security

Bypass Crypto.com's 2.72% Hidden FX Spread (Europeans only)

CdC App silently charges 2.72% FX spread on crypto→EUR card top-ups (€136 per €5K). Same trade on CdC Exchange: ≤0.5% (€25). Fix: Exchange→Revolut→App via SEPAInstant (30s, free).

Pro Tip: How to properly use Crypto.com Exchange CSV for Koinly.