Two-factor authentication flashcards

What is Two-Factor Authentication?

A security process requiring two different forms of identification to access an account.

Purpose of Two-Factor Authentication?

To enhance security by adding an extra layer to the login process.

Example of first factor in authentication?

Something you know, like a password or PIN.

Example of second factor in authentication?

Something you have, like a smartphone or hardware token.

True or false: 2FA is always required.

False, because it's optional but highly recommended for better security.

Difference between 2FA and MFA?

2FA uses two methods, while MFA can use more than two.

Fill the blank: 2FA can prevent ____ attacks.

Phishing attacks by requiring additional verification.

What is a hardware token?

A physical device that generates a code for authentication.

True or false: SMS is a secure second factor.

False, because SMS can be intercepted easily.

What is an authenticator app?

A mobile app that generates time-based codes for 2FA.

Benefits of using 2FA?

Increases account security and reduces risk of unauthorized access.

True or false: You can use 2FA on all accounts.

True, but not all services support it.

What happens if you lose your 2FA device?

You may need recovery codes or customer support for account access.

Common method for 2FA?

A one-time code sent via email or SMS.

What is phishing?

A fraudulent attempt to obtain sensitive information by pretending to be trustworthy.

How does 2FA help against phishing?

Even if a password is stolen, the second factor is still needed.

True or false: 2FA can eliminate all hacking risks.

False, while it improves security, it does not guarantee complete safety.

What is biometric authentication?

A method using fingerprints or facial recognition as a second factor.