OTP is an abbreviation for One-Time Password or One-Time PIN. It is a password or PIN that is auto-generated and valid for only one login session or transaction.
Also called a one-time authorization code (OTAC), it is usually sent from a remote server via SMS or email, but can also be generated on a hardware device called a token.
What does OTP mean?
It means one-time password or ene-time PIN, and is used for authorising transactions or logging into a service.
How is OTP used?
OTP allows you to login to a service or authorised a transaction without the use of a regular password that you have to memorise. It is usually sent to you by SMS or email by a service. Once you receive it, you enter the PIN or password in the specified field.
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Way back from the days of EPOC, Symbian, Palm, PocketPC/Windows Mobile, BlackBerry/BB10, webOS, Windows Phone, Firefox, Ubuntu Touch, to Android, iOS, and KaiOS operating systems, founder of MobilityArena, Mister Mobility, has owned a few hundred smartphones and tablets, and counting.