Multi-factor authentication: A security layer2 min read . Updated: 05 Mar 2019, 08:00 AM IST
- OTPs are considered secure because an OTP is only valid for one log-in session or transaction on a particular device
- The biggest advantage of OTPs over static passwords is that they are not vulnerable to “replay attacks”
If you have recently tried to log into your Google account from a new device using your username and password, you might have found yourself diving for your phone as Google asks you to verify the number that shows up on the new device using the one sent to your account-linked phone number.
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