How to Secure Your Online Identity with Security Keys

**Overview:** This blog provides a practical, user-focused guide to adopting hardware security keys (e.g., YubiKey) for phishing-resistant, passwordless authentication via passkeys and for MFA. It explains device compatibility checks, why to register at least two keys, how to set and manage a FIDO2 PIN, steps to register and use keys across popular services (Google, Microsoft, eBay, Adobe, DocuSign), and options for MFA enrollment. It also covers integrating keys with password managers, procedures for lost/stolen keys and deregistration, physical durability and end-of-life disposal, and troubleshooting tips (e.g., YubiKey Manager errors, authenticator codes for services without key support).