A Google login crypto wallet feels easy: tap “Sign in with Google” and you’re in. The risk is that your email login now opens your crypto too, so anyone who gets into that account may be able to reach your coins. A cold wallet you hold yourself, like the Tangem 3-card crypto wallet from NZ$137, keeps your keys off your email and off someone else’s servers.
With a social login wallet, a company usually stores or rebuilds your keys behind that sign-in. If the login is phished, the account is locked or the provider has a breach, your access depends on them, not you.
Email accounts get attacked every day through fake sign-in pages, password reuse and SIM swaps. When that login also guards your crypto, one mistake can cost you both.
A cold wallet doesn’t make crypto risk-free. If you use a seed phrase, keep it on handwritten paper only. But your keys stay with you, not tied to an email account.
Quantum Crypto is a Christchurch business and a Tangem co-branding partner, buying direct from Tangem.