What is the best website to verify/authenticate a gaming account? - Quora

You Can Now Enable Two-Step Authentication For Your Nintendo Account

160,000 Nintendo accounts were compromised—including one of ours [Updated]

https //accounts.nintendo.com/reauthenticate/device Access Code: Nintendo Reauthenticate Device

How to enable two-factor authentication for your Nintendo account

My brother gave me his Nintendo login so I could play his digital games but it's giving me this warning. I'm pretty sure his account is already linked to his Switch, so

Nintendo Now Has Two-Step Verification for Online Accounts

Nintendo Switch Two-Factor Security: How To Turn It On (And Why) - SlashGear

Nintendo Switch: How To Setup Two-Step Authentication

Nintendo Network adds two-factor authentication - Polygon

How to Manage PlayStation, Switch, and Xbox Privacy Settings