A security key is a physical device that provides a second factor of authentication for a user accessing a service. As a "something you have" factor, it is a core component of multifactor authentication (MFA), which requires at least two verification factors to enhance account security. While physical tokens can include devices like key fobs or smart cards, modern security keys typically connect via USB, NFC, or Bluetooth and use advanced cryptographic protocols like FIDO2 to resist phishing attacks.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What are common types of security keys used in multifactor authentication?
Open an interactive chat with Bash
How does multifactor authentication enhance security compared to single-factor authentication?
Open an interactive chat with Bash
What are the potential vulnerabilities or weaknesses of using security keys?