Hardware security keys I use for two-factor auth & more
I own several hardware security keys for use as a second factor for two-factor auth with many of my online accounts. Many websites these days let you authenticate multiple security keys so you can have a backup. I go into great detail about the topic in my recent article: Getting started with security keys.
Ledger Nano X
The leading Bluetooth-enabled hardware wallet to secure crypto assets. It also doubles as a U2F/WebAuthn device for Two-Factor Auth.