Using passkeys is a safer alternative to the risky password habits 49% of US adults use, according to CNET's password survey.

You will need to check the security options in your account settings at each site to determine if the security key is supported. Watchdog: Do you buy a key? Green: Yes. I bought a Yubico key for $30.

Security keys sound complicated, but computer users who want a higher level of security use them.