Uploaded July 2024 | Updated September 2026, 2 weeks ago

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Do you know what’s OTP, OTC or OTL?

All these words stand for One-Time-something and they refer to a form of authentication by possession so let’s go one by one!

OTP stands for One-Time-Password, which is valid for only one login session. OTC stands for One-Time Code and it’s often interchangeable with the term OTP

OTL on the other hand stands for One-Time-Link and it’s the link you get in an email to log in

All these methods can be used as either passwordless authentication or as a second factor authentication.

Now you know the difference between OTP, OTC and OTL and this’ been identity in a minute!

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