I’ve spent the last 5 years rotating through dozens of cold storage wallets, from open‑source devices to credit card-sized NFC wallets. Some were fantastic, some were frustrating, and a few ended up at the bottom… 5 Best Air-Gapped Crypto Wallets in 2025 (Only QR-Code Based)

After the FTX collapse, I learned the hard way that leaving Bitcoin on exchanges is risky because they can freeze accounts, suffer hacks, or vanish overnight. You need the most secure hardware wallet for Bitcoin… Most Secure Hardware Wallets for Bitcoin: 5 Safest Picks (2025)